Unconventional Surface Impedance of a Normal-Metal Film Covering a Spin-Triplet Superconductor Due to Odd-Frequency Cooper Pairs


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/47059

Title:	Unconventional Surface Impedance of a Normal-Metal Film Covering a Spin-Triplet Superconductor Due to Odd-Frequency Cooper Pairs
Authors:	Asano, Yasuhiro Browse this author →KAKEN DB
	Golubov, Alexander A. Browse this author
	Fominov, Yakov V. Browse this author
	Tanaka, Yukio Browse this author
Issue Date:	19-Aug-2011
Publisher:	American Physical Society
Journal Title:	Physical Review Letters
Volume:	107
Issue:	8
Start Page:	087001
Publisher DOI:	10.1103/PhysRevLett.107.087001
PMID:	21929195
Abstract:	We discuss the dynamic response of odd-frequency Cooper pairs to an electromagnetic field. By using the quasiclassical Green function method, we calculate the impedance (Z = R - iX) of a normal-metal thin film which covers a superconductor. In contrast with the standard relation (i.e., R << X), the impedance in spin-triplet proximity structures shows anomalous behavior (i.e., R > X) in the low frequency limit. This unusual relation is a result of the penetration of odd-frequency pairs into the normal metal and reflects the negative Cooper pair density.
Rights:	© 2011 American Physical Society
Type:	article
URI:	http://hdl.handle.net/2115/47059
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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