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arXiv · 0902.1225

Pairing symmetry conversion by spin-active interfaces in superconducting junctions

Jacob Linder·Takehito Yokoyama·Asle Sudbø·Matthias Eschrig
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Abstract

We study the proximity-induced superconducting correlations in a normal metal connected to a superconductor when the interface between them is spin-active and the normal metal is ballistic or diffusive. Remarkably, for any interface spin polarization there is a critical interface resistance, above which the conventional even-frequency proximity component vanishes completely at the chemical potential, while the odd-frequency component remains finite. We propose a way to unambiguously observe the odd-frequency component.

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Jacob Linder, Takehito Yokoyama, Asle Sudbø, Matthias Eschrig. 2009-02-07. Pairing symmetry conversion by spin-active interfaces in superconducting junctions. https://doi.org/10.1103/physrevlett.102.107008

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