Nonreciprocal charge transport at topological insulator/superconductor interface.

ABSTRACT: Topological superconductor is attracting growing interest for its potential application to topological quantum computation. The superconducting proximity effect on the topological insulator surface state is one promising way to yield topological superconductivity. The superconductivity realized at the interface between Bi₂Te₃ and non-superconductor FeTe is one such candidate. Here, to detect the mutual interaction between superconductivity and topological surface state, we investigate nonreciprocal transport; i.e., current-direction dependent resistance, which is sensitive to the broken inversion symmetry of the electronic state. The largely enhanced nonreciprocal phenomenon is detected in the Bi₂Te₃/FeTe heterostructure associated with the super

SUBMITTER: Yasuda K 

PROVIDER: S-EPMC6588591 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature