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

Y. Asano; M. Ozaki; T. Habe; Alexandre Avraamovitch Golubov; Y. Tanaka

doi:10.1103/PhysRevB.86.024510

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

Y. Asano, M. Ozaki, T. Habe, Alexandre Avraamovitch Golubov, Y. Tanaka

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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.

Original language	Undefined
Article number	024510
Pages (from-to)	024510-1-024510-8
Number of pages	8
Journal	Physical Review B (Condensed Matter and Materials Physics)
Volume	86
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.86.024510
Publication status	Published - 2012

Keywords

METIS-289334
IR-82264

Access to Document

10.1103/PhysRevB.86.024510

Cite this

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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.",

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AU - Asano, Y.

AU - Ozaki, M.

AU - Habe, T.

AU - Golubov, Alexandre Avraamovitch

AU - Tanaka, Y.

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

KW - METIS-289334

KW - IR-82264

U2 - 10.1103/PhysRevB.86.024510

DO - 10.1103/PhysRevB.86.024510

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JO - Physical Review B (Condensed Matter and Materials Physics)

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