• DocumentCode
    995790
  • Title

    Improved multi-loop DC SQUID

  • Author

    Carelli, P. ; Foglietti, V.

  • Author_Institution
    Istituto di Elettronica della Stato Solida del, Via Cineto Romano, Roma, Italy
  • Volume
    19
  • Issue
    3
  • fYear
    1983
  • fDate
    5/1/1983 12:00:00 AM
  • Firstpage
    299
  • Lastpage
    302
  • Abstract
    We report on an improved version of a multiloop thin film dc-SQUID. The new design features thirty-two parallel loops, a loop area of 400 × 400 μm, a total inductance of 20pH, and a coupling constant of 0.5 between the SQUID and the thin film input coil. Particular care was taken to decrease the capacitance shunting the main inductance. A novel "chessboard" design was used for this purpose. Preliminary results in a flux locked loop configuration give a coupled energy sensitivity of 900h at 1KHz with very low l/f noise.
  • Keywords
    Josephson devices; Capacitance; Coupling circuits; Fabrication; Geometry; Inductance; Josephson junctions; SQUIDs; Silicon; Superconducting coils; Transistors;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1983.1062526
  • Filename
    1062526
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=995790