Topological superconductivity and large spin Hall effect in the kagome family Ti₆X₄ (X = Bi, Sb, Pb, Tl, and In).

ABSTRACT: Topological superconductors (TSC) become a focus of research due to the accompanying Majorana fermions. However, the reported TSC are extremely rare. Recent experiments reported kagome TSC AV₃Sb₅ (A = K, Rb, and Cs) exhibit unique superconductivity, topological surface states (TSS), and Majorana bound states. More recently, the first titanium-based kagome superconductor CsTi₃Bi₅ with nontrivial topology was successfully synthesized as a perspective TSC. Given that Cs contributes little to electronic structures of CsTi₃Bi₅ and binary compounds may be easier to be synthesized, here, by first-principle calculations, we predict five stable nonmagnetic kagome compounds Ti₆X₄ (X = Bi, Sb, Pb, Tl, and In) whic

SUBMITTER: Yi XW 

PROVIDER: S-EPMC9817178 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature