The magnetic properties and Kondo effect in Ce3TiBi5 with a quasi-one-dimensional structure were investigated using in situ high-pressure resistivity measurements up to 48 GPa.At ambient pressure,Ce_(3)TiBi_(5) underg...The magnetic properties and Kondo effect in Ce3TiBi5 with a quasi-one-dimensional structure were investigated using in situ high-pressure resistivity measurements up to 48 GPa.At ambient pressure,Ce_(3)TiBi_(5) undergoes an antiferromagnetic(AFM)transition at T_(N)∼5 K.Under high pressures within 8.9 GPa,we find that Kondo scattering contributes differently to the high-temperature resistance,R(T),depending on the applied current direction,demonstrating a significantly anisotropic Kondo effect.The complete P–T phase diagram has been constructed,in which the pressure dependence of T_(N) exhibits a dome-like shape.The AFM order remains robust under pressure,even when the coherence temperature T^(*) far exceeds 300 K.We attribute the observed anisotropic Kondo effect and the robust AFM to the underlying anisotropy in electronic hybridization under high pressure.展开更多
Due to the increase in leakage current and the serious decrease of on/off ratio caused by short channel effect and medium tunneling effect,the continued scaling of silicon transistors has become an insurmountable obst...Due to the increase in leakage current and the serious decrease of on/off ratio caused by short channel effect and medium tunneling effect,the continued scaling of silicon transistors has become an insurmountable obstacle for the semiconductor manufacturing industry moving forward.Two-dimensional(2D)semiconductor materials hold promise for achieving high speed and low-power switching characteristics under limit node size[1-10].展开更多
We analytically describe the slip length of the surfactant-covered bubble film under the joint actions of pressure gradient and electric field.Considering the Marangoni effect,the slip length and consequent zeta poten...We analytically describe the slip length of the surfactant-covered bubble film under the joint actions of pressure gradient and electric field.Considering the Marangoni effect,the slip length and consequent zeta potential of the liquid‒vapor interface significantly reduced compared to the Marangoni-free interface at low surfactant concentrations,due to the surfactant accumulation at downstream of the bubble liquid film.In addition,we discovered that the friction coefficient of the liquid‒vapor interface becomes field dependent in a regime of strong coupling among volume flow,surfactant transport,and ionic current at the liquid‒vapor interface.We use the Onsager reciprocal relationship to describe the electrokinetic effects within a bubble film,including flow velocity,ionic current,and surfactant transport,which can describe theMarangoni effectswhile considering multi-physical effects.展开更多
In various areas such as geophysics,petroleum engineering,agriculture,metal casting,metal working,and cooling of atomic reactors,magnetohydrodynamic(MHD)forces on fluid flow over a stretched surface play a crucial rol...In various areas such as geophysics,petroleum engineering,agriculture,metal casting,metal working,and cooling of atomic reactors,magnetohydrodynamic(MHD)forces on fluid flow over a stretched surface play a crucial role.This study investigates heat transfer and MHD phenomena in the flow of a Casson fluid with ternary nanoparticles under the influence of an aligned magnetic field and the slip effect.The energy equation takes into account radiation,convection,and a uniform source/sink of heat.Additionally,the relationship between the aligned magnetic field and the slip velocity is investigated.Through appropriate transformations,the governing equations with their associated boundary conditions are transformed to a set of ordinary differential equations,which are solved numerically.Key quantities such as temperature,friction drag,Nusselt number,and fluid velocity are investigated.The results show that the magnetic field induces a resistive force that slows down the motion of the fluid.It is also found that increases in the radiation parameter and Biot number lead to significant increases in heat transfer.This study provides an enhanced understanding of thermal and fluid dynamics with relevance to complex industrial and other engineering scenarios.展开更多
基金supported by the National Key Research and Development Program of Chinathe National Natural Science Foundation of China (Grant Nos.2024YFA1408000,12474097,and2023YFA1406001)+2 种基金the Guangdong Provincial Quantum Science Strategic Initiative (Grant No.GDZX2201001)the Center for Computational Science and Engineering at Southern University of Science and Technology,the Major Science and Technology Infrastructure Project of Material Genome Big-science Facilities Platform supported by Municipal Development and Reform Commission of Shenzhen(for J.L.Z.and Y.L.)the Chinese funding sources applied via HPSTAR。
文摘The magnetic properties and Kondo effect in Ce3TiBi5 with a quasi-one-dimensional structure were investigated using in situ high-pressure resistivity measurements up to 48 GPa.At ambient pressure,Ce_(3)TiBi_(5) undergoes an antiferromagnetic(AFM)transition at T_(N)∼5 K.Under high pressures within 8.9 GPa,we find that Kondo scattering contributes differently to the high-temperature resistance,R(T),depending on the applied current direction,demonstrating a significantly anisotropic Kondo effect.The complete P–T phase diagram has been constructed,in which the pressure dependence of T_(N) exhibits a dome-like shape.The AFM order remains robust under pressure,even when the coherence temperature T^(*) far exceeds 300 K.We attribute the observed anisotropic Kondo effect and the robust AFM to the underlying anisotropy in electronic hybridization under high pressure.
基金supported by the National Natural Science Foundation of China(92464303,U23A20364,and 62274121)the Open Research Fund of Suzhou Laboratory(SZLAB-1508-2024-ZD014)+1 种基金the Fundamental Research Funds for the Central Universities(2042025kf0031)the Wuhan Industrial Innovation Joint Laboratory(2024050902040443)。
文摘Due to the increase in leakage current and the serious decrease of on/off ratio caused by short channel effect and medium tunneling effect,the continued scaling of silicon transistors has become an insurmountable obstacle for the semiconductor manufacturing industry moving forward.Two-dimensional(2D)semiconductor materials hold promise for achieving high speed and low-power switching characteristics under limit node size[1-10].
基金National Natural Science Foundation of China,Grant/Award Numbers:12388101,12241201Innovation Capability Support Programof Shaanxi,Grant/Award Number:2024RS-CXTD-15。
文摘We analytically describe the slip length of the surfactant-covered bubble film under the joint actions of pressure gradient and electric field.Considering the Marangoni effect,the slip length and consequent zeta potential of the liquid‒vapor interface significantly reduced compared to the Marangoni-free interface at low surfactant concentrations,due to the surfactant accumulation at downstream of the bubble liquid film.In addition,we discovered that the friction coefficient of the liquid‒vapor interface becomes field dependent in a regime of strong coupling among volume flow,surfactant transport,and ionic current at the liquid‒vapor interface.We use the Onsager reciprocal relationship to describe the electrokinetic effects within a bubble film,including flow velocity,ionic current,and surfactant transport,which can describe theMarangoni effectswhile considering multi-physical effects.
文摘In various areas such as geophysics,petroleum engineering,agriculture,metal casting,metal working,and cooling of atomic reactors,magnetohydrodynamic(MHD)forces on fluid flow over a stretched surface play a crucial role.This study investigates heat transfer and MHD phenomena in the flow of a Casson fluid with ternary nanoparticles under the influence of an aligned magnetic field and the slip effect.The energy equation takes into account radiation,convection,and a uniform source/sink of heat.Additionally,the relationship between the aligned magnetic field and the slip velocity is investigated.Through appropriate transformations,the governing equations with their associated boundary conditions are transformed to a set of ordinary differential equations,which are solved numerically.Key quantities such as temperature,friction drag,Nusselt number,and fluid velocity are investigated.The results show that the magnetic field induces a resistive force that slows down the motion of the fluid.It is also found that increases in the radiation parameter and Biot number lead to significant increases in heat transfer.This study provides an enhanced understanding of thermal and fluid dynamics with relevance to complex industrial and other engineering scenarios.
