Magnetic Properties of High Temperature Superconductors: Implications for 1/f Noise in Squids

  • R. H. Koch
  • A. P. Malozemoff
Conference paper


Relatively weak flux pinning in the new high temperature superconductors, coupled with a distribution in the pinning barriers strengths, is shown to imply large 1/f flux noise in Superconducting QUantum Interferences Devices (SQUIDs). A simple model is developed that is in order-of-magnitude agreement with experiments on thin-film SQUID devices.


Flux Line Flux Pinning Flux Creep Thin Film Device Barrier Distribution 
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Copyright information

© Springer Japan 1989

Authors and Affiliations

  • R. H. Koch
    • 1
  • A. P. Malozemoff
    • 1
  1. 1.IBM Research DivisionThomas J. Watson Research CenterYorktown HeightsUSA

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