Topological Superconductivity in an Extended s-Wave Superconductor and Its Implication to Iron-Based Superconductors

In the presence of both space and time reversal symmetries, an s-wave A_{1g} superconducting state is usually topologically trivial. Here, we demonstrate that an exception can take place in a type of nonsymmorphic lattice structure. We specify the demonstration in a time reversal invariant system wi...

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Bibliographic Details
Main Authors: Shengshan Qin, Chen Fang, Fu-Chun Zhang, Jiangping Hu
Format: Article
Language:English
Published: American Physical Society 2022-02-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.12.011030