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Fluctuations of Josephson Currents in Mesoscopic Systems

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Transport Phenomena in Mesoscopic Systems

Part of the book series: Springer Series in Solid-State Sciences ((SSSOL,volume 109))

Abstract

Various aspects of fluctuations in Josephson currents are studied for superconductor — normal metal — superconductor ( SNS ) systems with mesoscopic normal regions. In the system with diffusive normal region, relative magnitude of the fluctuation to the average is calculated. Effects of pair breaking on fluctuations are investigated especially in the systems with spin glass ordering, where it is found that the fluctuation remains finite even in the strong depairing limit although the average vanishes. In the system with Aharonov — Bohm ring geometry, we find hc/e oscillation in the critical current besides the well known hc/2e oscillation.

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Author information

Authors and Affiliations

  1. Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan

    H. Yoshioka (Faculty of Science) & H. Fakuyama (Faculty of Science)

Authors
  1. H. Yoshioka
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  2. H. Fakuyama
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Editor information

Editors and Affiliations

  1. Department of Physics, Faculty of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan

    Hidetoshi Fukuyama

  2. Institute for Solid State Physics, University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo 106, Japan

    Tsuneya Ando

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© 1992 Springer-Verlag Berlin Heidelberg

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Yoshioka, H., Fakuyama, H. (1992). Fluctuations of Josephson Currents in Mesoscopic Systems. In: Fukuyama, H., Ando, T. (eds) Transport Phenomena in Mesoscopic Systems. Springer Series in Solid-State Sciences, vol 109. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84818-6_24

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  • DOI: https://doi.org/10.1007/978-3-642-84818-6_24

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-84820-9

  • Online ISBN: 978-3-642-84818-6

  • eBook Packages: Springer Book Archive

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