Nematic Superconductivity in Doped Bi2Se3 Topological Superconductors
Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
Received: 27 November 2018 / Revised: 13 December 2018 / Accepted: 19 December 2018 / Published: 20 December 2018
Nematic superconductivity is a novel class of superconductivity characterized by spontaneous rotational-symmetry breaking in the superconducting gap amplitude and/or Cooper-pair spins with respect to the underlying lattice symmetry. Doped Bi
superconductors, such as Cu
, and Nb
, are considered as candidates for nematic superconductors, in addition to the anticipated topological superconductivity. Recently, various bulk probes, such as nuclear magnetic resonance, specific heat, magnetotransport, magnetic torque, and magnetization, have consistently revealed two-fold symmetric behavior in their in-plane magnetic-field-direction dependence, although the underlying crystal lattice possesses three-fold rotational symmetry. More recently, nematic superconductivity was directly visualized using scanning tunneling microscopy and spectroscopy. In this short review, we summarize the current research on the nematic behavior in superconducting doped Bi
systems and discuss issues and perspectives.
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MDPI and ACS Style
Yonezawa, S. Nematic Superconductivity in Doped Bi2Se3 Topological Superconductors. Condens. Matter 2019, 4, 2.
Yonezawa S. Nematic Superconductivity in Doped Bi2Se3 Topological Superconductors. Condensed Matter. 2019; 4(1):2.
Yonezawa, Shingo. 2019. "Nematic Superconductivity in Doped Bi2Se3 Topological Superconductors." Condens. Matter 4, no. 1: 2.
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