Anomalous Josephson Effect between Even- and Odd-Frequency Superconductors


Tanaka, Yukio and Golubov, Alexander A. and Kashiwaya, Satoshi and Ueda, Masahito (2007) Anomalous Josephson Effect between Even- and Odd-Frequency Superconductors. Physical Review Letters, 99 (3). 037005. ISSN 0031-9007

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Abstract:We demonstrate that, contrary to standard wisdom, the lowest-order Josephson coupling is possible between odd- and even-frequency superconductors. The origin of this effect is the induced odd- (even-)frequency pairing component at the interface of bulk even- (odd-)frequency superconductors. The resulting current-phase relation is found to be proportional to cosphi, where phi is the macroscopic phase difference between the two superconductors.
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Copyright:© 2007 American Physical Society
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