• DocumentCode
    1122603
  • Title

    Geometric \\pi Josephson Junction: Current-Phase Relations and Critical Current

  • Author

    Gumann, Andreas ; Iniotakis, Christian ; Schopohl, Nils

  • Author_Institution
    Center for Collective Quantum Phenomena, Univ. of Tuebingen, Tubingen, Germany
  • Volume
    19
  • Issue
    3
  • fYear
    2009
  • fDate
    6/1/2009 12:00:00 AM
  • Firstpage
    711
  • Lastpage
    714
  • Abstract
    Josephson junctions with an intrinsic phase shift of pi, so-called pi Josephson junctions, can be realized by a weak link of a d -wave superconductor with an appropriate boundary geometry. A model for the pairing potential of an according weak link is introduced which allows for the calculation of the influence of geometric parameters and temperature. From this model, current-phase relations and the critical current of the device are derived. The range of validity of the model is determined by comparison with self-consistent solutions.
  • Keywords
    Josephson effect; critical currents; d-wave superconductivity; high-temperature superconductors; phase shifters; superconducting junction devices; superconducting thin films; boundary geometry; critical current; current-phase relations; d -wave superconductor; epitactic c-axis oriented thin film; geometric parameters; geometric pi Josephson junction; high-temperature superconductors; intrinsic phase shift; pairing potential; superconducting weak links; High-temperature superconductors; Josephson junctions; superconducting microbridges; superconducting phase shifters; superconducting weak links;
  • fLanguage
    English
  • Journal_Title
    Applied Superconductivity, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1051-8223
  • Type

    jour

  • DOI
    10.1109/TASC.2009.2019586
  • Filename
    5153081
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1122603