Anomalous surface impedance in a normal-metal/superconductor junction with a spin-active interface
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.
Journal
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- Physical Review B
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Physical Review B 86 (2), 024510-, 2012-07-01
American Physical Society
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Details 詳細情報について
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- CRID
- 1050282813988564224
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- NII Article ID
- 120004405570
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- HANDLE
- 2115/49739
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- ISSN
- 10980121
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles