摘要
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.
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)
Chinese Academy of Sciences(Grant Nos.XDB330301,CAS-WX2023SF-0101 and YSBR047)
Guangdong Basic and Applied Basic Research Foundation(Grant Nos.2023A1515140188 and 2022A1515110404).
