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Contactless method for measuring the parameters of the current-voltage characteristic of YBCO superconductors in a perpendicular magnetic field

  • I. F. Voloshin
  • A. V. Kalinov
  • L. M. FisherEmail author
  • M. L. Nesterov
  • V. A. Yampol’skii
  • E. H. Brandt
Proceedings of the XXXIV Conference on Low-Temperature Physics “NT-34”
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Abstract

A contactless method for determination of the parameters of the current-voltage (I—V) characteristic of hard superconductors by measuring the magnetization relaxation of the superconductor in a perpendicular magnetic field has been developed. The relaxation curves obtained for melt-textured YBCO samples are well approximated by the curves calculated within the electrodynamic model based on power-law I—V characteristics. This procedure uses only two fitting parameters: the critical current density J c and the exponent m of the I—V characteristic.

Keywords

Versus Characteristic Critical Current Density Relaxation Curve Hall Probe Perpendicular Magnetic Field 
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.

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Copyright information

© Allerton Press, Inc. 2007

Authors and Affiliations

  • I. F. Voloshin
    • 1
  • A. V. Kalinov
    • 1
  • L. M. Fisher
    • 1
    Email author
  • M. L. Nesterov
    • 2
  • V. A. Yampol’skii
    • 2
  • E. H. Brandt
    • 3
  1. 1.All-Russia Electrical Engineering InstituteMoscowRussia
  2. 2.Usikov Institute of Radiophysics and ElectronicsNational Academy of Sciences of UkraineKharkovUkraine
  3. 3.Max Planck Institut für MetalloforschungStuttgartGermany

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