Intrinsic surface p-wave superconductivity in layered AuSn₄.

ABSTRACT: The search for topological superconductivity (TSC) is currently an exciting pursuit, since non-trivial topological superconducting phases could host exotic Majorana modes. However, the difficulty in fabricating proximity-induced TSC heterostructures, the sensitivity to disorder and stringent topological restrictions of intrinsic TSC place serious limitations and formidable challenges on the materials and related applications. Here, we report a new type of intrinsic TSC, namely intrinsic surface topological superconductivity (IS-TSC) and demonstrate it in layered AuSn₄ with T_c of 2.4 K. Different in-plane and out-of-plane upper critical fields reflect a two-dimensional (2D) character of superconductivity. The two-fold symmetric angular dependences of both magneto-trans

SUBMITTER: Zhu W 

PROVIDER: S-EPMC10622569 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature