Anomalous surface impedance in a normal-metal/superconductor junction with a spin-active interface


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Title:	Anomalous surface impedance in a normal-metal/superconductor junction with a spin-active interface
Authors:	Asano, Yasuhiro Browse this author →KAKEN DB
	Ozaki, Masahiro Browse this author
	Habe, Tetsuro Browse this author
	Golubov, Alexander A. Browse this author
	Tanaka, Yukio Browse this author
Issue Date:	1-Jul-2012
Publisher:	American Physical Society
Journal Title:	Physical Review B
Volume:	86
Issue:	2
Start Page:	024510
Publisher DOI:	10.1103/PhysRevB.86.024510
Abstract:	We discuss the surface impedance (Z = R - iX) of a normal-metal/superconductor proximity structure taking into account the spin-dependent potential at the junction interface. Because of the spin-mixing transport at the interface, odd-frequency spin-triplet s-wave Cooper pairs penetrate into the normal metal and cause the anomalous response to electromagnetic fields. At low temperature, the local impedance at a surface of the normal metal shows the nonmonotonic temperature dependence and the anomalous relation R > X. We also discuss a possibility of observing such anomalous impedance in experiments.
Rights:	©2012 American Physical Society
Type:	article
URI:	http://hdl.handle.net/2115/49739
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 浅野泰寛

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