• DocumentCode
    995471
  • Title

    Shunted DC SQUIDs with Nb-NbOx-Pb technology

  • Author

    Garnier, J.F. ; Villegier, J.C. ; Duret, D. ; Regent, A.

  • Author_Institution
    L.E.T.I., Commissariat A L´´energie Atomique, Grenoble France
  • Volume
    19
  • Issue
    3
  • fYear
    1983
  • fDate
    5/1/1983 12:00:00 AM
  • Firstpage
    591
  • Lastpage
    593
  • Abstract
    Planar dc SQUIDs have been made and tested. They consist of a 5mm × 5mm square with a 30μm to 100μm hole, the junctions being near the center of the device. The loop inductance is in the range of 100- 200 pH. The technology uses Nb/NbOx/Pb overlapped junctions and Ta shunt resistors. Coupling is discussed ; we show that the input coupling constant k cannot be obtained by direct measurements and an efficiency constant r = I1/nIi, is introduced where n is the number of turns of the input coil, Iithe input current and I1the induced current in the SQUID loop. An experimental efficiency of about 50% has been obtained.
  • Keywords
    Josephson devices; Electrodes; Fabrication; Gold; Inductance; Niobium; Protection; Resistors; SQUIDs; Substrates; Transistors;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1983.1062498
  • Filename
    1062498
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=995471