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FIELD Phys:Condensed Matter Physics
DATE June 27 (Mon), 2022
TIME 14:00-16:00
PLACE 1424
SPEAKER 문은국
HOST Hwang, Kyusung
INSTITUTE KAIST
TITLE Using disorder to identify a class of topological superconductors
ABSTRACT

Identification of topological superconductors is one of the most challenging issues in modern condensed matter physics. Conventional wisdom is that disorder is a source of decoherence in topological superconductors and needs to be eliminated. On the contrary, here we show that disorder may be utilized to identify a class of topological superconductor states, Bogoliubov Fermi-surfaces. We demonstrate that the linear dependence of the residual density of states under disorder uniquely identifies a Bogoliubov Fermi-surface, which can be tested by electron irradiation experiments. Our results may apply to the candidate materials such as Sr2RuO4, FeSe1-xSx, and UBe13.

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