The AV_(3)Sb_(5)prototype kagomematerials have been demonstrated as a versatile platform for exploring exotic properties in condensed matter physics,including charge density waves,superconductivity,non-trivial electro...The AV_(3)Sb_(5)prototype kagomematerials have been demonstrated as a versatile platform for exploring exotic properties in condensed matter physics,including charge density waves,superconductivity,non-trivial electron topology,as well as topological superconductivity.Here we identify that ANb_(3)Bi_(5)(A=K,Rb,Cs)exhibit non-trivial coexisting superconductivity and topological properties via firstprinciples calculations.The negative formation energy and the absence of imaginary phonon dispersion demonstrate both thermodynamics and dynamics stabilities of ANb_(3)Bi_(5)(A=K,Rb,Cs)under ambient conditions.展开更多
基金supported by National Natural Science Foundation of China(Grant Nos.12304095,12025407,11974400 and 12204513)Ministry of Science and Technology of the Peoples Republic of China(Grant Nos.2021YFA0718700 and 2021YFA1400201)+1 种基金Chinese Academy of Sciences(Grant Nos.XDB330301,CAS-WX2023SF-0101 and YSBR047)Guangdong Basic and Applied Basic Research Foundation(Grant Nos.2023A1515140188 and 2022A1515110404).
文摘The AV_(3)Sb_(5)prototype kagomematerials have been demonstrated as a versatile platform for exploring exotic properties in condensed matter physics,including charge density waves,superconductivity,non-trivial electron topology,as well as topological superconductivity.Here we identify that ANb_(3)Bi_(5)(A=K,Rb,Cs)exhibit non-trivial coexisting superconductivity and topological properties via firstprinciples calculations.The negative formation energy and the absence of imaginary phonon dispersion demonstrate both thermodynamics and dynamics stabilities of ANb_(3)Bi_(5)(A=K,Rb,Cs)under ambient conditions.
