Time-reversal symmetry breaking in the Fe-chalcogenide superconductors.

ABSTRACT: Topological superconductivity has been sought in a variety of heterostructure systems, the interest being that a material displaying such a phenomenon could prove to be the ideal platform to support Majorana fermions, which in turn could be the basis for advanced qubit technologies. Recently, the high-T_c family of superconductors, FeTe_1-xSe_x, have been shown to exhibit the property of topological superconductivity and further, evidence has been found for the presence of Majorana fermions. We have studied the interplay of topology, magnetism, and superconductivity in the FeTe_1-x Se _x family using high-resolution laser-based photoemission. At the bulk superconducting transition, a gap opens at the chemical potential as expe

SUBMITTER: Zaki N 

PROVIDER: S-EPMC7826412 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature