Paramagnetic instability of small topological superconductors

Suzuki, Shu-Ichiro; Asano, Yasuhiro

Physical Review B, 2014, 89(18), 184508-1-184508-7

Permalink : https://hdl.handle.net/2115/57010

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ファイル	フォーマット	サイズ	閲覧回数	説明
PhysRevB89 184508	pdf	1.60 MB	933

アクセス権	open access
URI	https://hdl.handle.net/2115/57010
タイトル	Paramagnetic instability of small topological superconductors
著者	著者名 Suzuki, Shu-Ichiro
著者	e-Rad_Researcher 20271637 著者名 Asano, Yasuhiro
言語	英語
発行日	2014-05-01
出版者	American Physical Society
収録物名	Physical Review B
巻(号)	89(18)
ページ	184508-1-184508-7
抄録	The diamagnetism is an essential property of all superconductors. However, we will show that small topological (or unconventional) superconductors can be intrinsically paramagnetic by solving the quasiclassical Eilenberger equation and the Max well equation self-consistently on two-dimensional superconducting disks in weak magnetic fields. Because of the topologically nontrivial character of the wave function, the unconventional superconductors host the zero-energy surface Andreev bound states, which always accompany so-called odd-frequency Cooper pairs. The paramagnetic property of the odd-frequency pairs explains the paramagnetic response of the disks at low temperature.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2014 American Physical Society
PISSN	1098-0121
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.89.184508