The interplay of crystal electric field,temperature,and spin–orbit coupling can yield a Kramer ion and thus an effective S=1/2 ground state for Co^(2+)ions(3d^(7)),which is often the case for low-dimensional material...The interplay of crystal electric field,temperature,and spin–orbit coupling can yield a Kramer ion and thus an effective S=1/2 ground state for Co^(2+)ions(3d^(7)),which is often the case for low-dimensional materials.This is because a highly anisotropic structural motif can force the spins to point either“up”or“down,”thereby creating a system where spins communicate via Ising interactions.Cobalt-based quasi-1-dimensional materials have been studied in this context since the latter half of the 20th century.However,due to the development of modern characterization techniques and advances in sample preparation,the exotic physical phenomena that have generated the most interest have only emerged in the past three to four decades.This topical review mainly summarizes progress in cobalt-based quasi-1-dimensional quantum magnets and comments on a few research directions of potential future interest.展开更多
Recently,Long et al.[1]at the Beijing Academy of Quantum Information Sciences,in collaboration with the partners,proposed the theory of oneway quantum secure direct communication(QSDC)and successfully developed a prac...Recently,Long et al.[1]at the Beijing Academy of Quantum Information Sciences,in collaboration with the partners,proposed the theory of oneway quantum secure direct communication(QSDC)and successfully developed a practical system.This achievement set a world record for long-distance stable transmission,demonstrating a rate of 2.38 kbps at a distance of 104.8 km over 168 hours.展开更多
Fe_(3)GaTe_(2)has attracted significant interest due to its intrinsic room-temperature ferromagnetism,yet its magnetic interactions remain debated.We thoroughly investigate the magnetism of Fe_(3)GaTe_(2)using critica...Fe_(3)GaTe_(2)has attracted significant interest due to its intrinsic room-temperature ferromagnetism,yet its magnetic interactions remain debated.We thoroughly investigate the magnetism of Fe_(3)GaTe_(2)using critical analysis,nitrogen–vacancy(NV)center magnetometry,and Density Function Theory(DFT).Our critical phenomenon analysis with exponents[β=0.3706(9),=1.32(6),σ=4.7(2)]and DFT calculations reveal competition between itinerant and localized spins driven by anisotropic coupling,which can be attributed to a net charge transfer of approximately 0.22 electrons from Fe^(3+)to surrounding Ge/Te atoms.As confirmed by NV center magnetometry,the ferromagnetism in Fe_(3)GaTe_(2)remains robust even in thin-layered sheet of 16 nm(corresponding to approximately 20 layers).The out-of-plane ferromagnetism in thin Fe_(3)GaTe_(2)sheets is stabilized due to the distinct spin interaction energies between intralayers(J_(1)~66.74 meV andJ_(2)~17.33 meV)and interlayers(J_(z)~3.78 meV).In addition,the constant energy contour profiles near the Fermi surface of Fe_(3)GaTe_(2)suggest the presence of both hole and electron pockets with a distorted contour around the K/K′point,indicating hexagonal trigonal warping effects.Furthermore,the layer-resolved electronic band structure uncovers a layer–valley coupling near the Fermi surface,with bands at valleys K and K′associated with different layers.These findings pave way for advanced electronic applications operating above-room-temperature.展开更多
Thermal metamaterials represent a transformative paradigm in modern physics,synergizing thermodynamic principles with metamaterial engineering to master heat flow at will.As next-generation technologies demand multi-s...Thermal metamaterials represent a transformative paradigm in modern physics,synergizing thermodynamic principles with metamaterial engineering to master heat flow at will.As next-generation technologies demand multi-scale thermal control,this field urgently requires systematic frameworks to unify its multidisciplinary advances.Curated through a global collaboration involving over 50 specialists across 25 subdisciplines,this review primarily summarizes two decades of advancements,ranging from theoretical breakthroughs to functional implementations.The review reveals groundbreaking innovations in heat manipulation through the exploration of both classical and non-classical transport regimes,topological thermal control mechanisms,and quantum-informed phonon engineering strategies.By bridging physical insights like non-Hermitian thermal dynamics and valleytronic phonon transport with cutting-edge applications,we demonstrate paradigm-shifting capabilities:environment-adaptive thermal cloaks,AI-optimized metamaterials,and nonlinear thermal circuits enabling heat-based computation.Experimental milestones include 3D thermal null media with reconfigurable invisibility and thermal designs breaking classical conductivity limits.This collaborative effort establishes an indispensable roadmap for physicists,highlighting pathways to quantum thermal management,entropy-controlled energy systems,and topological devices.As thermal metamaterials transition from laboratory marvels to technological cornerstones,this work provides the foundational lexicon and design principles for the coming era of intelligent thermal matter.展开更多
In materials science,data-driven methods accelerate material discovery and optimization while reducing costs and improving success rates.Symbolic regression is a key to extracting material descriptors from large datas...In materials science,data-driven methods accelerate material discovery and optimization while reducing costs and improving success rates.Symbolic regression is a key to extracting material descriptors from large datasets,in particular the Sure Independence Screening and Sparsifying Operator(SISSO)method.While SISSO needs to store the entire expression space to impose heavy memory demands,it limits the performance in complex problems.To address this issue,we propose a RF-SISSO algorithm by combining Random Forests(RF)with SISSO.In this algorithm,the Random Forests algorithm is used for prescreening,capturing non-linear relationships and improving feature selection,which may enhance the quality of the input data and boost the accuracy and efficiency on regression and classification tasks.For a testing on the SISSO’s verification problem for 299 materials,RF-SISSO demonstrates its robust performance and high accuracy.RF-SISSO can maintain the testing accuracy above 0.9 across all four training sample sizes and significantly enhancing regression efficiency,especially in training subsets with smaller sample sizes.For the training subset with 45 samples,the efficiency of RF-SISSO was 265 times higher than that of original SISSO.As collecting large datasets would be both costly and time-consuming in the practical experiments,it is thus believed that RF-SISSO may benefit scientific researches by offering a high predicting accuracy with limited data efficiently.展开更多
In conventional electrides,excess electrons are localized in crystal voids to serve as anions.Most of these electrides are metallic and the metal cations are primarily from the s-block,d-block,or rare-earth elements.H...In conventional electrides,excess electrons are localized in crystal voids to serve as anions.Most of these electrides are metallic and the metal cations are primarily from the s-block,d-block,or rare-earth elements.Here,we report a class of p-block metal-based electrides found in bilayer SnO and PbO,which are semiconducting and feature electride states in both the valence band(VB)and conduction band(CB),as referred to 2D“bipolar”electrides.These bilayers are hybrid electrides where excess electrons are localized in the interlayer region and hybridize with the orbitals of Sn atoms in the VB,exhibiting strong covalent-like interactions with neighboring metal atoms.Compared to previously studied hybrid electrides,the higher electronegativity of Sn and Pb enhances these covalent-like interactions,leading to largely enhanced semiconducting bandgap of up to 2.5 eV.Moreover,the CBM primarily arises from the overlap between metal states and interstitial charges,denoting a potential electride and forming a free-electron-like(FEL)state with small effective mass.This state offers high carrier mobilities for both electron and hole in bilayer SnO,suggesting its potential as a promising p-type semiconductor material.展开更多
With the growing demand for miniaturization and low power consumption in optoelectronic devices,self-powered photodetectors(SPPDs)have attracted widespread attention due to their excellent performance without external...With the growing demand for miniaturization and low power consumption in optoelectronic devices,self-powered photodetectors(SPPDs)have attracted widespread attention due to their excellent performance without external power.Two-dimensional(2D)layered transition metal dichalcogenides(TMDs)are exemplary materials for heterojunction SPPDs,owing to their distinctive properties such as the absence of surface dangling bonds,high carrier mobility,tunable bandgap,and strong light–matter interaction.Thanks to their high-quality heterojunction interfaces,SPPDs based on TMDs exhibit broad spectral response,high detectivity,and ultrafast response speed.Moreover,various interface modulation strategies have been developed to enhance photoelectric conversion efficiency.In this review,we summarize recent advancements in heterojunction modulation strategies based on TMDs.First,the structural,optical,and electronic properties of TMDs are systematically introduced.Next,the strategies for energy band alignment engineering,interface engineering,growth modulation,and carrier modulation are reviewed according to the vertical-structure and lateral-structure photodetectors.Finally,we summarize the challenges of TMDs-based SPPDs and propose possible future research directions.This review offers a forward-looking perspective on TMDs-based SPPDs.展开更多
Graphite serves as a pivotal anode material in lithium-ion batteries.However,issues such as the co-embedding of solvent molecules during cycling and rapid capacity degradation at high rates have greatly hampered the p...Graphite serves as a pivotal anode material in lithium-ion batteries.However,issues such as the co-embedding of solvent molecules during cycling and rapid capacity degradation at high rates have greatly hampered the practical application and development of graphite materials.Herein,this study proposes a straightforward,cost-effective,and environmentally benign strategy for modifying graphite anodes,with the dual objectives of enhancing high-rate capability and prolonging cycle life.Using water as the primary solvent and polyacrylonitrile as the coating material,a highly conductive,flexible,and strongly bonded polymer cladding layer is designed by combining solid-liquid coating and low-temperature heat treatment technologies.This innovative design not only effectively prevents the co-embedding of solvent molecules and mitigates the volume change of graphite particles during extended cycling,but also successfully constructs a dense and efficient electron transport network on the graphite surface.Leveraging the stability advantages brought by the high electron cloud overlap of C=N bonds(comprisingσbonds andπbonds),the conductivity and structural stability of the material are enhanced.This ultimately results in the successful synthesis of the G@C-PAN core-shell material,which exhibits high-rate performance and exceptional long-cycling stability.The results indicate that the material retains a high specific capacity of 328.12 mAh·g^(-1) with 96.18%capacity retention after 250 cycles at 0.5C.Furthermore,it exhibits an impressive specific capacity retention of 97.20%after 500 cycles at 2C.This study presents a sustainable,economically viable,and scalable approach for commercializing high-performance graphite-based lithium-ion batteries.展开更多
Efficiently and fast seeking specific lattices with targeted phonon thermal conductivityκ_(L)plays an important role in the thermal design and thermal management of materials.How to efficiently and accurately evaluat...Efficiently and fast seeking specific lattices with targeted phonon thermal conductivityκ_(L)plays an important role in the thermal design and thermal management of materials.How to efficiently and accurately evaluate the phonon lifetime determined by anharmonicity becomes a critical bottleneck when high-throughput measuring.Here,we propose a method of fast evaluating three-phonon scattering induced lifetime based on the many-body theory of phonon gas.In the high temperature limit,the phonon scattering rate is simply determined by the product of only two anharmonic parameters:the square of Grüneisen parameter and the phase space size of three-phonon scattering,both of which can be quickly derived from the harmonic phonon properties.We demonstrate the effectiveness of the method in high-throughput evaluatingκ_(L)the in firstprinciples calculation,which exhibits a good consistence with our collected experimental data.This method shows promising application potential in exploring material screening of the targetedκ_(L),which by improving the ability of characterizing phonon anharmonicity will further enhance the performanceκ_(L)of prediction.展开更多
In undergraduate statistical mechanics,we have learned that thermalization is the process of physical bodies reaching thermal equilibrium through mutual interaction.In general,the natural tendency of a system is towar...In undergraduate statistical mechanics,we have learned that thermalization is the process of physical bodies reaching thermal equilibrium through mutual interaction.In general,the natural tendency of a system is towards a state of equipartition of energy and uniform temperature that maximizes the system’s entropy.展开更多
The interfacial tension between two cell subpopulations in direct contact represents a key physical parameter responsible for the self-organization of tissues during biological processes such as morphogenesis and the ...The interfacial tension between two cell subpopulations in direct contact represents a key physical parameter responsible for the self-organization of tissues during biological processes such as morphogenesis and the spreading of cancers.Higher interfacial tension(i)reduces the spreading of cancer-mesenchymal cells through the epithelial subpopulation,(ii)ensures efficient cell segregation in co-cultured systems,(iii)can induce extrusion of cancer-mesenchymal cells along the biointerface with the epithelial subpopulation,and(iv)results in the generation of higher mechanical stress along the biointerface.Inhomogeneous distribution of the interfacial tension leads to the Marangoni effect,which further facilitates the rearrangement of cells.The formation of mobile stiffness gradients,known as durotaxis,under in vivo conditions is directly related to an inhomogeneous distribution of the interfacial tension.As the product of homotypic and heterotypic cell-cell interactions,the interfacial tension depends on the distance between the subpopulations,which varies over time.This review(i)summarizes biological aspects related to the homotypic and heterotypic cell-cell interactions along the biointerface,together with the viscoelasticity of cell subpopulations caused by collective cell migration and by compression(de-wetting)/extension(wetting)of the subpopulations;and(ii)describes these same biological aspects from a biophysical/mathematical perspective by pointing to the role played by the interfacial tension.展开更多
The duality of left and right eigenvectors underpins the comprehensive understanding of many physical phenomena.In Hermitian systems,left and right eigenvectors are simply Hermitian-conjugate pairs.In contrast,non-Her...The duality of left and right eigenvectors underpins the comprehensive understanding of many physical phenomena.In Hermitian systems,left and right eigenvectors are simply Hermitian-conjugate pairs.In contrast,non-Hermitian eigenstates have left and right eigenvectors that are distinct from each other.However,despite the tremendous interest in non-Hermitian physics in recent years,the roles of non-Hermitian left eigenvectors(LEVs)are still inadequately explored.Their physical consequences and observable effects remain elusive,so much so that LEVs seem largely like objects of primarily mathematical purpose.In this study,we present a method based on the non-Hermitian Green’s function for directly retrieving both LEVs and right eigenvectors(REVs)from experimentally measured steady-state responses.We validate the effectiveness of this approach in two separate acoustic experiments:one characterizes the non-Hermitian Berry phase,and the other measures extended topological modes.Our results not only unambiguously demonstrate observable effects related to non-Hermitian LEVs but also highlight the under-appreciated role of LEVs in non-Hermitian phenomena.展开更多
We review the physics of monolayer graphene in a strong magnetic field,with emphasis on highly collective states that emerge from the weakly interacting system because of correlations(emergent states).After reviewing ...We review the physics of monolayer graphene in a strong magnetic field,with emphasis on highly collective states that emerge from the weakly interacting system because of correlations(emergent states).After reviewing the general properties of graphene and of electrons in a magnetic field,we give a brief introduction to the integer quantum Hall effect(IQHE)and the fractional quantum Hall effect(FQHE)in a 2D electron gas as foundation to show that monolayer graphene in a magnetic field exhibits both effects,but with properties modified by the influence of the graphene crystal.After giving an introduction to standard methods of dealing with emergent states for this system,we show that an SO(8)fermion dynamical symmetry governs the emergent degrees of freedom and that the algebraic and group properties of the dynamical symmetry provide a new view of strongly correlated states observed in monolayer graphene subject to a strong magnetic field.展开更多
Nowadays,there has been a growing trend in the field of high-energy physics(HEP),in both its experimental and phenomenological studies,to incorporate machine learning(ML)and its specialized branch,deep learning(DL).Th...Nowadays,there has been a growing trend in the field of high-energy physics(HEP),in both its experimental and phenomenological studies,to incorporate machine learning(ML)and its specialized branch,deep learning(DL).This review paper provides a thorough illustration of these applications using different ML and DL approaches.The first part of the paper examines the basics of various particle physics types and establishes guidelines for assessing particle physics alongside the available learning models.Next,a detailed classification is provided for representing Jets that are reconstructed in high-energy collisions,mainly in proton-proton collisions at well-defined beam energies.This section covers various datasets,preprocessing techniques,and feature extraction and selection methods.The presented techniques can be applied to future hadron–hadron colliders(HHC),such as the high-luminosity LHC(HL-LHC)and the future circular collider–hadron–hadron(FCC-hh).The authors then explore several AI techniques analyses designed specifically for both image and point-cloud(PC)data in HEP.Additionally,a closer look is taken at the classification associated with Jet tagging in hadron collisions.In this review,various state-of-the-art(SOTA)techniques in ML and DL are examined,with a focus on their implications for HEP demands.More precisely,this discussion addresses various applications in extensive detail,such as Jet tagging,Jet tracking,and particle classification.The review concludes with an analysis of the current state of HEP using DL methodologies.It highlights the challenges and potential areas for future research,which are illustrated for each application.展开更多
Photonic moirélattices(PMLs),with unique twisted periodic patterns,provide a valuable platform for investigating strongly correlated materials,unconventional superconductivity,and the localization–delocalization...Photonic moirélattices(PMLs),with unique twisted periodic patterns,provide a valuable platform for investigating strongly correlated materials,unconventional superconductivity,and the localization–delocalization transition.However,PMLs created either by the misorientation between lattice layers or by twisted van der Waals materials are typically non-tunable and inherently possess immutable refractive indices.Unlike those in the moirélattices of twisted two-dimensional materials,our work reports a moirélattice formed by overlapping two identical sublattices with twisted angles in an ultracold atomic ensemble.This photoinduced moirélattice with two twisted sublattices exhibits high flexibility and rich periodicity through adjustable twisted angles.Our results indicate that both the absorption/dispersion coefficients and the transmission of the photoinduced moirélattices can be effectively tuned by photon detuning and Rabi frequency,resulting in amplitude-and phase-type moirélattices.Based on the Fraunhofer diffraction theory,we have demonstrated that the far-field diffraction efficiency can be adjusted via altering photon detuning,and the rotation angle serves as a control knob for modulating the diffracted intensity distribution,thereby optimizing the performance of the photonic lattice.It is also found that the operation domains of the moirélattices with different rotation angles remain consistent,allowing for seamless conversion between various moiréperiod structures.Furthermore,a moirélattice composed of three twisted sublattices is investigated,revealing that the diffraction energy is uniformly dispersed in a circular distribution,which provides excellent agility in the design of optical devices.Such tunable PML offer a powerful tool for studying light propagation control and the intriguing physics of twisted systems in atomic media.展开更多
Despite extensive research,the achievement of tunable Chern numbers in quantum anomalous Hall(QAH)systems remains a challenge in the field of condensed matter physics.Here,we theoretically proposed that Ti_(2)X_(2)(X=...Despite extensive research,the achievement of tunable Chern numbers in quantum anomalous Hall(QAH)systems remains a challenge in the field of condensed matter physics.Here,we theoretically proposed that Ti_(2)X_(2)(X=P,As,Sb,Bi)can realize tunable Chern numbers QAH effect by adjusting their magnetization orientations.In the case of Ti_(2)P_(2) and Ti_(2)As_(2),if the magnetization lies in the x-y plane,and all C_(2) symmetries are broken,a low-Chern-number phase with C=1 will manifest.Conversely,if the magnetization is aligned to the z-axis,the systems enter a high-Chern number phase with C=3.As for Ti_(2)Sb_(2) and Ti_(2)Bi_(2),by manipulating the inplane magnetization orientation,these systems can periodically enter topological phases(C=±1)over a 60°interval.Adjusting the magnetization orientation from+z to-z will result in the systems’Chern number alternating between±1.The non-trivial gap in monolayer Ti_(2)X_(2)(X=P,As,Sb,Bi)can reach values of 23.4,54.4,60.8,and 88.2 meV,respectively.All of these values are close to the room-temperature energy scale.Furthermore,our research has revealed that the application of biaxial strain can effectively modify the magnetocrystalline anisotropic energy,which is advantageous in the manipulation of magnetization orientation.This work provides a family of large-gap QAH insulators with tunable Chern numbers,demonstrating promising prospects for future electronic applications.展开更多
Significant progress has been made in high-power ultrafast laser technology since the development of diode-pumped solid-state laser systems.Three main types of diode-pumped laser systems,InnoSlab,fiber,and thin disk l...Significant progress has been made in high-power ultrafast laser technology since the development of diode-pumped solid-state laser systems.Three main types of diode-pumped laser systems,InnoSlab,fiber,and thin disk lasers,offer highly efficient cooling geometries that are essential for highpower ultrafast amplifiers.These systems employ amplifier chain configurations customized to their individual geometries,scaling the low-power seed lasers to high power via multi-pass,multi-stage,and regenerative amplification techniques.The partially end-pumped InnoSlab amplifier is distinguished by its slab-shaped gain medium and a highly compact design.This design offers a large surface-to-volume ratio,moderate gain per pass,and reduced nonlinear effects,facilitating the amplification of low-power ultrafast seed laser pulses to kilowatt-level output power at high repetition rates in the multi-MHz range.This review highlights the characteristics of InnoSlab technology and its amplifier configurations,discussing recent advancements in new cavity designs aimed at enhancing gain and beam quality.Additionally,it covers the mechanisms of generating high peak power few-cycle pulses,including non-linear post-pulse compression.The review also explores the potential applications of InnoSlab systems for generating extreme ultraviolet(XUV)and terahertz(THz)frequencies.展开更多
Two-dimensional(2D)transition-metal dichalcogenides(TMDs)materials have unique band structure as well as excellent electrical and optical properties,which exhibit great advantages in optoelectronic devices.Chemical va...Two-dimensional(2D)transition-metal dichalcogenides(TMDs)materials have unique band structure as well as excellent electrical and optical properties,which exhibit great advantages in optoelectronic devices.Chemical vapor deposition(CVD),a method to realize the synthesis of large-scale 2D TMDs materials,will inevitably introduce defects in the growth process,thus decreasing the performance of 2D TMDs-based optoelectronic devices.In order to fundamentally address this issue,we proposed a method to gradually regulate the reaction concentration of precursor during growth.As a result,the suitable concentration of precursor can effectively enhance the probability of covalent binding of X-M(X:S,Se,etc.;M:Mo,W,etc.),thus suppressing the generation of vacancy defects.Furthermore,we explored sulfur vacancy(V_(S))on the performance of 2D molybdenum disulfide-based(MoS_(2)-based)self-powered devices through constructing p-type silicon/MoS_(2)(p-Si/MoS_(2))based p-n heterojunction.The photodetector composed of optimized MoS_(2) nanosheets exhibited high responsivity(330.14 A·W^(-1)),fast response speed(40μs/133μs),and excellent photovoltage stability.This method of regulating the low temperature region during CVD growth can realize the preparation of high-quality TMDs films and be applied in high-performance optoelectronic devices.展开更多
We investigate the squared sublattice magnetizations and magnetic excitations of a S=1/2 trilayer antiferromagnetic Heisenberg model with interlayer interaction J_(⊥) and intralayer interaction J_(//),by employing st...We investigate the squared sublattice magnetizations and magnetic excitations of a S=1/2 trilayer antiferromagnetic Heisenberg model with interlayer interaction J_(⊥) and intralayer interaction J_(//),by employing stochastic series expansion quantum Monte Carlo(SSE-QMC)and stochastic analytic continuation(SAC)methods.Compared with the bilayer model,the trilayer model has one inner layer and two outer layers.The change in its symmetry can lead to special magnetic excitations.Our study reveals that the maximum of the magnetization of the outer sublattice corresponds to smaller ratio parameter g=Ju/_(//)J_(⊥),a finding that is verified using the finite-size extrapolation.As g decreases,the excitation spectra gradually evolve from a degenerate magnon mode with continua to low-energy and high-energy branches.Particularly when g is small enough,like 0.02,the high-energy spectrum further splits into characteristic doublon(J_(⊥))and quarton(~1.5J_(⊥))spectral bands.Moreover,the accuracy of the magnetic excitations is confirmed through the SpinW software package and the dispersion relations derived through the linear spin wave theory.Our results provide an important reference for experiments,which can be directly compared with experimental data from inelastic neutron scattering results to verify and guide the accuracy of experimental detection.展开更多
We propose a conceptual device for a multiplexed biosensor in a photonic crystal chip based on the Su-Schrieffer-Heeger mechanism.Remarkably,the proposed biosensor can identify three distinct disease markers through a...We propose a conceptual device for a multiplexed biosensor in a photonic crystal chip based on the Su-Schrieffer-Heeger mechanism.Remarkably,the proposed biosensor can identify three distinct disease markers through a single-shot photon transmission measurement,thanks to the couplings among the three Su-Schrieffer-Heeger boundary modes in the photonic crystal.Our biosensor design is more robust against defects and disorders that are inevitable in real-life device applications than previous designs.Such robustness is invaluable for achieving efficient,reliable,and integrated biosensing based on nanophotonic systems.We further demonstrate that various combinations of disease markers can be recognized via the photon transmission spectrum,thus unveiling a promising route toward high-performance,advanced biosensing for future biomedical technology.展开更多
基金supported by the Start-up Research Fund of Southeast University(Grant No.RF1028624196)the Gordon and Betty Moore foundation,EPiQS initiative(Grant No.GBMF-9066)the Basic Sciences Division of the US Department of Energy(Grant No.DE-FG02-98ER45706)。
文摘The interplay of crystal electric field,temperature,and spin–orbit coupling can yield a Kramer ion and thus an effective S=1/2 ground state for Co^(2+)ions(3d^(7)),which is often the case for low-dimensional materials.This is because a highly anisotropic structural motif can force the spins to point either“up”or“down,”thereby creating a system where spins communicate via Ising interactions.Cobalt-based quasi-1-dimensional materials have been studied in this context since the latter half of the 20th century.However,due to the development of modern characterization techniques and advances in sample preparation,the exotic physical phenomena that have generated the most interest have only emerged in the past three to four decades.This topical review mainly summarizes progress in cobalt-based quasi-1-dimensional quantum magnets and comments on a few research directions of potential future interest.
文摘Recently,Long et al.[1]at the Beijing Academy of Quantum Information Sciences,in collaboration with the partners,proposed the theory of oneway quantum secure direct communication(QSDC)and successfully developed a practical system.This achievement set a world record for long-distance stable transmission,demonstrating a rate of 2.38 kbps at a distance of 104.8 km over 168 hours.
基金supported by the National Key R&D Program of China(Grant No.2024YFA1611103)the National Natural Science Foundation of China(Grant Nos.12350410367,12074360,12374128,12074386,12250410238,and 62150410438)+3 种基金the Alliance of International Science Organizations(Grant Nos.ANSO-VF-2022-03 and ANSO-VF-2024-03)Anhui Provincial Major S&T Project(Grant No.s202305a12020005)A portion of this work was supported by the Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures(Grant No.JZHKYPT-2021-08)the High Magnetic Field Laboratory of Anhui Province under Contract No.AHHM-FX-2020-02.
文摘Fe_(3)GaTe_(2)has attracted significant interest due to its intrinsic room-temperature ferromagnetism,yet its magnetic interactions remain debated.We thoroughly investigate the magnetism of Fe_(3)GaTe_(2)using critical analysis,nitrogen–vacancy(NV)center magnetometry,and Density Function Theory(DFT).Our critical phenomenon analysis with exponents[β=0.3706(9),=1.32(6),σ=4.7(2)]and DFT calculations reveal competition between itinerant and localized spins driven by anisotropic coupling,which can be attributed to a net charge transfer of approximately 0.22 electrons from Fe^(3+)to surrounding Ge/Te atoms.As confirmed by NV center magnetometry,the ferromagnetism in Fe_(3)GaTe_(2)remains robust even in thin-layered sheet of 16 nm(corresponding to approximately 20 layers).The out-of-plane ferromagnetism in thin Fe_(3)GaTe_(2)sheets is stabilized due to the distinct spin interaction energies between intralayers(J_(1)~66.74 meV andJ_(2)~17.33 meV)and interlayers(J_(z)~3.78 meV).In addition,the constant energy contour profiles near the Fermi surface of Fe_(3)GaTe_(2)suggest the presence of both hole and electron pockets with a distorted contour around the K/K′point,indicating hexagonal trigonal warping effects.Furthermore,the layer-resolved electronic band structure uncovers a layer–valley coupling near the Fermi surface,with bands at valleys K and K′associated with different layers.These findings pave way for advanced electronic applications operating above-room-temperature.
文摘Thermal metamaterials represent a transformative paradigm in modern physics,synergizing thermodynamic principles with metamaterial engineering to master heat flow at will.As next-generation technologies demand multi-scale thermal control,this field urgently requires systematic frameworks to unify its multidisciplinary advances.Curated through a global collaboration involving over 50 specialists across 25 subdisciplines,this review primarily summarizes two decades of advancements,ranging from theoretical breakthroughs to functional implementations.The review reveals groundbreaking innovations in heat manipulation through the exploration of both classical and non-classical transport regimes,topological thermal control mechanisms,and quantum-informed phonon engineering strategies.By bridging physical insights like non-Hermitian thermal dynamics and valleytronic phonon transport with cutting-edge applications,we demonstrate paradigm-shifting capabilities:environment-adaptive thermal cloaks,AI-optimized metamaterials,and nonlinear thermal circuits enabling heat-based computation.Experimental milestones include 3D thermal null media with reconfigurable invisibility and thermal designs breaking classical conductivity limits.This collaborative effort establishes an indispensable roadmap for physicists,highlighting pathways to quantum thermal management,entropy-controlled energy systems,and topological devices.As thermal metamaterials transition from laboratory marvels to technological cornerstones,this work provides the foundational lexicon and design principles for the coming era of intelligent thermal matter.
基金supported by the National Natural Science Foundation of China(Nos.21933006 and 21773124)the Fundamental Research Funds for the Central Universities of Nankai University(Nos.63243091 and 63233001)the Supercomputing Center of Nankai University(NKSC).
文摘In materials science,data-driven methods accelerate material discovery and optimization while reducing costs and improving success rates.Symbolic regression is a key to extracting material descriptors from large datasets,in particular the Sure Independence Screening and Sparsifying Operator(SISSO)method.While SISSO needs to store the entire expression space to impose heavy memory demands,it limits the performance in complex problems.To address this issue,we propose a RF-SISSO algorithm by combining Random Forests(RF)with SISSO.In this algorithm,the Random Forests algorithm is used for prescreening,capturing non-linear relationships and improving feature selection,which may enhance the quality of the input data and boost the accuracy and efficiency on regression and classification tasks.For a testing on the SISSO’s verification problem for 299 materials,RF-SISSO demonstrates its robust performance and high accuracy.RF-SISSO can maintain the testing accuracy above 0.9 across all four training sample sizes and significantly enhancing regression efficiency,especially in training subsets with smaller sample sizes.For the training subset with 45 samples,the efficiency of RF-SISSO was 265 times higher than that of original SISSO.As collecting large datasets would be both costly and time-consuming in the practical experiments,it is thus believed that RF-SISSO may benefit scientific researches by offering a high predicting accuracy with limited data efficiently.
基金the financial support from the Ministry of Science and Technology(MOST)of China(Grant No.2023YFA1406500)the National Natural Science Foundation of China(Grant Nos.11974422 and 12104504)+1 种基金the Fundamental Research Funds for the Central Universities,and the Research Funds of Renmin University of China(Grant No.22XNKJ30)(W.J.)supported by the Outstanding Innovative Talents Cultivation Funded Programs 2023 of Renmin University of China.
文摘In conventional electrides,excess electrons are localized in crystal voids to serve as anions.Most of these electrides are metallic and the metal cations are primarily from the s-block,d-block,or rare-earth elements.Here,we report a class of p-block metal-based electrides found in bilayer SnO and PbO,which are semiconducting and feature electride states in both the valence band(VB)and conduction band(CB),as referred to 2D“bipolar”electrides.These bilayers are hybrid electrides where excess electrons are localized in the interlayer region and hybridize with the orbitals of Sn atoms in the VB,exhibiting strong covalent-like interactions with neighboring metal atoms.Compared to previously studied hybrid electrides,the higher electronegativity of Sn and Pb enhances these covalent-like interactions,leading to largely enhanced semiconducting bandgap of up to 2.5 eV.Moreover,the CBM primarily arises from the overlap between metal states and interstitial charges,denoting a potential electride and forming a free-electron-like(FEL)state with small effective mass.This state offers high carrier mobilities for both electron and hole in bilayer SnO,suggesting its potential as a promising p-type semiconductor material.
基金supported by the“111”Project of China(No.D17017)the National Natural Science Foundation of China(No.62174015)the Developing Project of Science and Technology of Jilin Province(No.YDZJ202401321ZYTS).
文摘With the growing demand for miniaturization and low power consumption in optoelectronic devices,self-powered photodetectors(SPPDs)have attracted widespread attention due to their excellent performance without external power.Two-dimensional(2D)layered transition metal dichalcogenides(TMDs)are exemplary materials for heterojunction SPPDs,owing to their distinctive properties such as the absence of surface dangling bonds,high carrier mobility,tunable bandgap,and strong light–matter interaction.Thanks to their high-quality heterojunction interfaces,SPPDs based on TMDs exhibit broad spectral response,high detectivity,and ultrafast response speed.Moreover,various interface modulation strategies have been developed to enhance photoelectric conversion efficiency.In this review,we summarize recent advancements in heterojunction modulation strategies based on TMDs.First,the structural,optical,and electronic properties of TMDs are systematically introduced.Next,the strategies for energy band alignment engineering,interface engineering,growth modulation,and carrier modulation are reviewed according to the vertical-structure and lateral-structure photodetectors.Finally,we summarize the challenges of TMDs-based SPPDs and propose possible future research directions.This review offers a forward-looking perspective on TMDs-based SPPDs.
基金supported by the Science and Technology Projects of the State Grid Corporation of China(No.5500-202323102A-1-1-ZN)the Natural Science Foundation of Hunan Province(No.2023JJ10005)+1 种基金the Key Project of Hunan Provincial Department of Education(Grant No.23A0057)Youth Support Project of Hunan Normal University(Grant No.240649).
文摘Graphite serves as a pivotal anode material in lithium-ion batteries.However,issues such as the co-embedding of solvent molecules during cycling and rapid capacity degradation at high rates have greatly hampered the practical application and development of graphite materials.Herein,this study proposes a straightforward,cost-effective,and environmentally benign strategy for modifying graphite anodes,with the dual objectives of enhancing high-rate capability and prolonging cycle life.Using water as the primary solvent and polyacrylonitrile as the coating material,a highly conductive,flexible,and strongly bonded polymer cladding layer is designed by combining solid-liquid coating and low-temperature heat treatment technologies.This innovative design not only effectively prevents the co-embedding of solvent molecules and mitigates the volume change of graphite particles during extended cycling,but also successfully constructs a dense and efficient electron transport network on the graphite surface.Leveraging the stability advantages brought by the high electron cloud overlap of C=N bonds(comprisingσbonds andπbonds),the conductivity and structural stability of the material are enhanced.This ultimately results in the successful synthesis of the G@C-PAN core-shell material,which exhibits high-rate performance and exceptional long-cycling stability.The results indicate that the material retains a high specific capacity of 328.12 mAh·g^(-1) with 96.18%capacity retention after 250 cycles at 0.5C.Furthermore,it exhibits an impressive specific capacity retention of 97.20%after 500 cycles at 2C.This study presents a sustainable,economically viable,and scalable approach for commercializing high-performance graphite-based lithium-ion batteries.
基金support from the National Natural Science Foundation of China(Nos.11935010)the Natural Science Foundation of Shanghai(No.23ZR1481200)+2 种基金the Program of Shanghai Academic Research Leader(No.23XD1423800)the National Key R&D Program of China(Grant No.2022YFA1404400)the Opening Project of Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology.
文摘Efficiently and fast seeking specific lattices with targeted phonon thermal conductivityκ_(L)plays an important role in the thermal design and thermal management of materials.How to efficiently and accurately evaluate the phonon lifetime determined by anharmonicity becomes a critical bottleneck when high-throughput measuring.Here,we propose a method of fast evaluating three-phonon scattering induced lifetime based on the many-body theory of phonon gas.In the high temperature limit,the phonon scattering rate is simply determined by the product of only two anharmonic parameters:the square of Grüneisen parameter and the phase space size of three-phonon scattering,both of which can be quickly derived from the harmonic phonon properties.We demonstrate the effectiveness of the method in high-throughput evaluatingκ_(L)the in firstprinciples calculation,which exhibits a good consistence with our collected experimental data.This method shows promising application potential in exploring material screening of the targetedκ_(L),which by improving the ability of characterizing phonon anharmonicity will further enhance the performanceκ_(L)of prediction.
基金supported by the US NSF under Grant No.PHY-2207283 and the Welch Foundation with Grant No.C-1669.
文摘In undergraduate statistical mechanics,we have learned that thermalization is the process of physical bodies reaching thermal equilibrium through mutual interaction.In general,the natural tendency of a system is towards a state of equipartition of energy and uniform temperature that maximizes the system’s entropy.
基金supported in part by the Engineering and Physical Sciences Research Council,United Kingdom(Grant No.EP/X004597/1)by the Ministry of Science,Technological Development and Innovation of the Republic of Serbia(Contract No.451-03-65/2024-03/200135).
文摘The interfacial tension between two cell subpopulations in direct contact represents a key physical parameter responsible for the self-organization of tissues during biological processes such as morphogenesis and the spreading of cancers.Higher interfacial tension(i)reduces the spreading of cancer-mesenchymal cells through the epithelial subpopulation,(ii)ensures efficient cell segregation in co-cultured systems,(iii)can induce extrusion of cancer-mesenchymal cells along the biointerface with the epithelial subpopulation,and(iv)results in the generation of higher mechanical stress along the biointerface.Inhomogeneous distribution of the interfacial tension leads to the Marangoni effect,which further facilitates the rearrangement of cells.The formation of mobile stiffness gradients,known as durotaxis,under in vivo conditions is directly related to an inhomogeneous distribution of the interfacial tension.As the product of homotypic and heterotypic cell-cell interactions,the interfacial tension depends on the distance between the subpopulations,which varies over time.This review(i)summarizes biological aspects related to the homotypic and heterotypic cell-cell interactions along the biointerface,together with the viscoelasticity of cell subpopulations caused by collective cell migration and by compression(de-wetting)/extension(wetting)of the subpopulations;and(ii)describes these same biological aspects from a biophysical/mathematical perspective by pointing to the role played by the interfacial tension.
基金supported by the National Key R&D Program(No.2022YFA1404400)the Hong Kong Research Grants Council(Nos.RFS2223-2S01 and 12301822)the Hong Kong Baptist University(Nos.RC-RSRG/23-24/SCI/01 and RC-SFCRG/23-24/R2/SCI/12).
文摘The duality of left and right eigenvectors underpins the comprehensive understanding of many physical phenomena.In Hermitian systems,left and right eigenvectors are simply Hermitian-conjugate pairs.In contrast,non-Hermitian eigenstates have left and right eigenvectors that are distinct from each other.However,despite the tremendous interest in non-Hermitian physics in recent years,the roles of non-Hermitian left eigenvectors(LEVs)are still inadequately explored.Their physical consequences and observable effects remain elusive,so much so that LEVs seem largely like objects of primarily mathematical purpose.In this study,we present a method based on the non-Hermitian Green’s function for directly retrieving both LEVs and right eigenvectors(REVs)from experimentally measured steady-state responses.We validate the effectiveness of this approach in two separate acoustic experiments:one characterizes the non-Hermitian Berry phase,and the other measures extended topological modes.Our results not only unambiguously demonstrate observable effects related to non-Hermitian LEVs but also highlight the under-appreciated role of LEVs in non-Hermitian phenomena.
文摘We review the physics of monolayer graphene in a strong magnetic field,with emphasis on highly collective states that emerge from the weakly interacting system because of correlations(emergent states).After reviewing the general properties of graphene and of electrons in a magnetic field,we give a brief introduction to the integer quantum Hall effect(IQHE)and the fractional quantum Hall effect(FQHE)in a 2D electron gas as foundation to show that monolayer graphene in a magnetic field exhibits both effects,but with properties modified by the influence of the graphene crystal.After giving an introduction to standard methods of dealing with emergent states for this system,we show that an SO(8)fermion dynamical symmetry governs the emergent degrees of freedom and that the algebraic and group properties of the dynamical symmetry provide a new view of strongly correlated states observed in monolayer graphene subject to a strong magnetic field.
文摘Nowadays,there has been a growing trend in the field of high-energy physics(HEP),in both its experimental and phenomenological studies,to incorporate machine learning(ML)and its specialized branch,deep learning(DL).This review paper provides a thorough illustration of these applications using different ML and DL approaches.The first part of the paper examines the basics of various particle physics types and establishes guidelines for assessing particle physics alongside the available learning models.Next,a detailed classification is provided for representing Jets that are reconstructed in high-energy collisions,mainly in proton-proton collisions at well-defined beam energies.This section covers various datasets,preprocessing techniques,and feature extraction and selection methods.The presented techniques can be applied to future hadron–hadron colliders(HHC),such as the high-luminosity LHC(HL-LHC)and the future circular collider–hadron–hadron(FCC-hh).The authors then explore several AI techniques analyses designed specifically for both image and point-cloud(PC)data in HEP.Additionally,a closer look is taken at the classification associated with Jet tagging in hadron collisions.In this review,various state-of-the-art(SOTA)techniques in ML and DL are examined,with a focus on their implications for HEP demands.More precisely,this discussion addresses various applications in extensive detail,such as Jet tagging,Jet tracking,and particle classification.The review concludes with an analysis of the current state of HEP using DL methodologies.It highlights the challenges and potential areas for future research,which are illustrated for each application.
基金supported by the National Natural Science Foundation of China(NSFC)(Grant Nos.62074127,U21A2073,62304173,62304175,62404177,61804122,11874142,61627812,61705176,11874102,11474048,and 61805068)the Natural Science Fund of Shaanxi Province(Grant Nos.2018JQ6002,2021JQ062,2021JQ056,and 2021GY223)+4 种基金the Postdoctoral Science Foundation(Grant Nos.2019M653637,2019M660256,and 2017M620300)the National Key Research and Development Program of China(Grant No.2018YFE0125900)the Fundamental Research Funds for the Central Universities(FRFCU)(Grant No.ZYGX2019J102)the National Key R&D Program of China(NK R&D PC)(Grant Nos.2021YFB3602100,2017YFB0402800,and 2017YFB0402802)the Natural Science Basic Research Program of Shaanxi Province(Grant No.2024JC-YBMS-505).
文摘Photonic moirélattices(PMLs),with unique twisted periodic patterns,provide a valuable platform for investigating strongly correlated materials,unconventional superconductivity,and the localization–delocalization transition.However,PMLs created either by the misorientation between lattice layers or by twisted van der Waals materials are typically non-tunable and inherently possess immutable refractive indices.Unlike those in the moirélattices of twisted two-dimensional materials,our work reports a moirélattice formed by overlapping two identical sublattices with twisted angles in an ultracold atomic ensemble.This photoinduced moirélattice with two twisted sublattices exhibits high flexibility and rich periodicity through adjustable twisted angles.Our results indicate that both the absorption/dispersion coefficients and the transmission of the photoinduced moirélattices can be effectively tuned by photon detuning and Rabi frequency,resulting in amplitude-and phase-type moirélattices.Based on the Fraunhofer diffraction theory,we have demonstrated that the far-field diffraction efficiency can be adjusted via altering photon detuning,and the rotation angle serves as a control knob for modulating the diffracted intensity distribution,thereby optimizing the performance of the photonic lattice.It is also found that the operation domains of the moirélattices with different rotation angles remain consistent,allowing for seamless conversion between various moiréperiod structures.Furthermore,a moirélattice composed of three twisted sublattices is investigated,revealing that the diffraction energy is uniformly dispersed in a circular distribution,which provides excellent agility in the design of optical devices.Such tunable PML offer a powerful tool for studying light propagation control and the intriguing physics of twisted systems in atomic media.
基金the support by the National Natural Science Foundation of China(Grant Nos.30930852,62371397,and 62374134)the start-up funds from Northwestern Polytechnical University.
文摘Despite extensive research,the achievement of tunable Chern numbers in quantum anomalous Hall(QAH)systems remains a challenge in the field of condensed matter physics.Here,we theoretically proposed that Ti_(2)X_(2)(X=P,As,Sb,Bi)can realize tunable Chern numbers QAH effect by adjusting their magnetization orientations.In the case of Ti_(2)P_(2) and Ti_(2)As_(2),if the magnetization lies in the x-y plane,and all C_(2) symmetries are broken,a low-Chern-number phase with C=1 will manifest.Conversely,if the magnetization is aligned to the z-axis,the systems enter a high-Chern number phase with C=3.As for Ti_(2)Sb_(2) and Ti_(2)Bi_(2),by manipulating the inplane magnetization orientation,these systems can periodically enter topological phases(C=±1)over a 60°interval.Adjusting the magnetization orientation from+z to-z will result in the systems’Chern number alternating between±1.The non-trivial gap in monolayer Ti_(2)X_(2)(X=P,As,Sb,Bi)can reach values of 23.4,54.4,60.8,and 88.2 meV,respectively.All of these values are close to the room-temperature energy scale.Furthermore,our research has revealed that the application of biaxial strain can effectively modify the magnetocrystalline anisotropic energy,which is advantageous in the manipulation of magnetization orientation.This work provides a family of large-gap QAH insulators with tunable Chern numbers,demonstrating promising prospects for future electronic applications.
基金the National Key Research and Natural Science Foundation of China(Nos.62105225,62275174,61975136,and 61935014)the Development Program of China(No.2022YFB3605800)+2 种基金the Natural Science Foundation of Top Talent of Shenzhen Technology University(No.GDRC202106)Shenzhen University Stability Support Project(Nos.20220719104008001 and 20220718173849001)Guangdong Provincial Engineering Technology Research Center for Materials for Advanced MEMS Sensor Chip(No.2022GCZX005).
文摘Significant progress has been made in high-power ultrafast laser technology since the development of diode-pumped solid-state laser systems.Three main types of diode-pumped laser systems,InnoSlab,fiber,and thin disk lasers,offer highly efficient cooling geometries that are essential for highpower ultrafast amplifiers.These systems employ amplifier chain configurations customized to their individual geometries,scaling the low-power seed lasers to high power via multi-pass,multi-stage,and regenerative amplification techniques.The partially end-pumped InnoSlab amplifier is distinguished by its slab-shaped gain medium and a highly compact design.This design offers a large surface-to-volume ratio,moderate gain per pass,and reduced nonlinear effects,facilitating the amplification of low-power ultrafast seed laser pulses to kilowatt-level output power at high repetition rates in the multi-MHz range.This review highlights the characteristics of InnoSlab technology and its amplifier configurations,discussing recent advancements in new cavity designs aimed at enhancing gain and beam quality.Additionally,it covers the mechanisms of generating high peak power few-cycle pulses,including non-linear post-pulse compression.The review also explores the potential applications of InnoSlab systems for generating extreme ultraviolet(XUV)and terahertz(THz)frequencies.
基金the National Natural Science Foundation of China(No.62174015)Department of Science and Technology of Jilin Province(No.YDZJ202402081CXJD).
文摘Two-dimensional(2D)transition-metal dichalcogenides(TMDs)materials have unique band structure as well as excellent electrical and optical properties,which exhibit great advantages in optoelectronic devices.Chemical vapor deposition(CVD),a method to realize the synthesis of large-scale 2D TMDs materials,will inevitably introduce defects in the growth process,thus decreasing the performance of 2D TMDs-based optoelectronic devices.In order to fundamentally address this issue,we proposed a method to gradually regulate the reaction concentration of precursor during growth.As a result,the suitable concentration of precursor can effectively enhance the probability of covalent binding of X-M(X:S,Se,etc.;M:Mo,W,etc.),thus suppressing the generation of vacancy defects.Furthermore,we explored sulfur vacancy(V_(S))on the performance of 2D molybdenum disulfide-based(MoS_(2)-based)self-powered devices through constructing p-type silicon/MoS_(2)(p-Si/MoS_(2))based p-n heterojunction.The photodetector composed of optimized MoS_(2) nanosheets exhibited high responsivity(330.14 A·W^(-1)),fast response speed(40μs/133μs),and excellent photovoltage stability.This method of regulating the low temperature region during CVD growth can realize the preparation of high-quality TMDs films and be applied in high-performance optoelectronic devices.
基金supported by the NKRDPC2022YFA1402802,NSFC-12494591,NSFC-92165204,the Leading Talent Program of Guangdong Special Projects(No.201626003)Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices(No.2022B1212010008)+1 种基金the Research Center for Magnetoelectric Physics of Guangdong Province(No.2024B0303390001)Guangdong Provincial Quantum Science Strategic Initiation(No.GDZX2401010).
文摘We investigate the squared sublattice magnetizations and magnetic excitations of a S=1/2 trilayer antiferromagnetic Heisenberg model with interlayer interaction J_(⊥) and intralayer interaction J_(//),by employing stochastic series expansion quantum Monte Carlo(SSE-QMC)and stochastic analytic continuation(SAC)methods.Compared with the bilayer model,the trilayer model has one inner layer and two outer layers.The change in its symmetry can lead to special magnetic excitations.Our study reveals that the maximum of the magnetization of the outer sublattice corresponds to smaller ratio parameter g=Ju/_(//)J_(⊥),a finding that is verified using the finite-size extrapolation.As g decreases,the excitation spectra gradually evolve from a degenerate magnon mode with continua to low-energy and high-energy branches.Particularly when g is small enough,like 0.02,the high-energy spectrum further splits into characteristic doublon(J_(⊥))and quarton(~1.5J_(⊥))spectral bands.Moreover,the accuracy of the magnetic excitations is confirmed through the SpinW software package and the dispersion relations derived through the linear spin wave theory.Our results provide an important reference for experiments,which can be directly compared with experimental data from inelastic neutron scattering results to verify and guide the accuracy of experimental detection.
基金supported by the National Key R&D Program of China(No.2022YFA1404400)support from the National Natural Science Foundation of China(Grant Nos.12125504 and12074281)the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions.
文摘We propose a conceptual device for a multiplexed biosensor in a photonic crystal chip based on the Su-Schrieffer-Heeger mechanism.Remarkably,the proposed biosensor can identify three distinct disease markers through a single-shot photon transmission measurement,thanks to the couplings among the three Su-Schrieffer-Heeger boundary modes in the photonic crystal.Our biosensor design is more robust against defects and disorders that are inevitable in real-life device applications than previous designs.Such robustness is invaluable for achieving efficient,reliable,and integrated biosensing based on nanophotonic systems.We further demonstrate that various combinations of disease markers can be recognized via the photon transmission spectrum,thus unveiling a promising route toward high-performance,advanced biosensing for future biomedical technology.
