Anomalous Surface Impedance in a Normal-metal/Superconductor Junction with a Spin-active Interface
Superconductivity
2015-06-04 v1
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.
Cite
@article{arxiv.1204.4012,
title = {Anomalous Surface Impedance in a Normal-metal/Superconductor Junction with a Spin-active Interface},
author = {Yasuhiro Asano and Masahiro Ozaki and Tetsuro Habe and Alexander A. Golubov and Yukio Tanaka},
journal= {arXiv preprint arXiv:1204.4012},
year = {2015}
}
Comments
7pages, 7 figures