Journal of Superconductivity

, Volume 9, Issue 1, pp 77–79 | Cite as

Estimation of intragrain magnetic flux motion viscosity in high-temperature superconductors

  • A. A. Kordyuk
  • V. V. Nemoshkalenko


A simple method for evaluation of the lower limit of intragrain magnetic flux motion viscosity is presented. We have also shown that in our experiment the energy loss in an alternating magnetic field in a granular YBa2Cu3O7−xsuperconductor prepared by the standard sintering method is determined by thermally assisted magnetic flux flow into superconducting grains and does not depend on the intergrain space.

Key words

Granular superconductors flux motion energy losses levitation 


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Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • A. A. Kordyuk
    • 1
  • V. V. Nemoshkalenko
    • 1
  1. 1.Institute of Metal PhysicsNational Academy of Science of UkraineKiev 142Ukraine

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