Advertisement

Present status and future of dc SQUIDs made from High-Tc Superconductors

  • R. H. Koch
  • W. J. Gallagher
  • B. Oh
  • V. Foglietti
  • H. Olsson
  • R. B. Laibowitz
  • G. Koren
  • A. Gupta
  • W. Y. Lee

Abstract

Superconducting Quantum Interference Devices (SQUIDs) that operate at 77 K have now been fabricated by many groups from high temperature superconductors. We will examine the performance of high-Tc SQUIDs, including the issues of the periodicity and hysteresis of the response, the magnitude of the noise in the SQUIDs, and the manufacturability of the devices. The nature of the junctions forming the SQUIDs, which have been naturally occurring grain boundaries in all but a few of the reported devices, and the physical mechanisms responsible for the noise sources will also be reviewed. The possible applications of these and future high-Tc SQUIDs will be examined.

Keywords

Noise Source High Temperature Superconductor Coherence Length Magnetic Coupling YBCO Film 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • R. H. Koch
    • 1
  • W. J. Gallagher
    • 1
  • B. Oh
    • 1
  • V. Foglietti
    • 1
  • H. Olsson
    • 1
  • R. B. Laibowitz
    • 1
  • G. Koren
    • 1
  • A. Gupta
    • 1
  • W. Y. Lee
    • 1
  1. 1.IBM Research DivisionThomas J. Watson Research CenterYorktown HeightsUSA

Personalised recommendations