Advertisement

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
Article

Abstract

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 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. P. Malozemoff, inPhysical Properties of High-Temperature Superconductors I, D. Ginsberg, ed. (World Scientific, Singapore, 1989).Google Scholar
  2. 2.
    P. L. Gammel, L. F. Schneemeyer. J. V. Waszczak, and D. J. Bishop,Phys. Rev. Lett,61, 1666 (1988).Google Scholar
  3. 3.
    E. H. Brandt, P. Esquinazi, and C. Duran,J. Appl. Phys. 65, 4936 (1989).Google Scholar
  4. 4.
    D. J. Baar, J. P. Harrison, Y. Lacroix, J. P. Franck, and M. K. Yu,Physica C 170, 233 (1990).Google Scholar
  5. 5.
    Z. J. Yang, T. H. Johansen, H. Bratsberg, G. Helgesen, and A. T. Skjeltorp,Physica C 165, 397 (1990).Google Scholar
  6. 6.
    A. N. Terentiev and A. A. Kuznetsov,Physica C 195, 41 (1992).Google Scholar
  7. 7.
    V. V. Nemoshkalenko, E. H. Brandt, A. A. Kordyuk, and B. G. Nikitin,Physica C 170, 481 (1990).Google Scholar
  8. 8.
    V. V. Nemoshkalenko, M. A. Ivanov, B. G. Nikitin, and Yu. G. Pogorelov,J. Supercond. 4, 411 (1991).Google Scholar
  9. 9.
    V. V. Nemoshkalenko, A. A. Kordyuk, and B. G. Nikitin,Phys. Met. 13, 599 (1994).Google Scholar
  10. 10.
    V. V. Nemoshkalenko, A. A. Kordyuk, B. G. Nikitin, and V. S. Savoshchenko,Phys. Met. 14, No. 7, (1994) in press.Google Scholar
  11. 11.
    V. V. Nemoshkalenko, and A. A. Kordyuk,Phys. Met. 14 (1994) No. 9, in press.Google Scholar
  12. 12.
    D. Dew-Hughes,Cryogenics 28, 674 (1988).Google Scholar
  13. 13.
    P. H. Kes, J. Aarts, J. van den Berg, C. J. van der Beek, and J. A. Mydosh,Supercond. Sci. Technol. 1, 242 (1989).Google Scholar
  14. 14.
    V. V. Nemoshkalenko, Y. V. Kornyushin, N. S. Kobzenko, A. D. Morosovsky, B. G. Nikitin, and A. P. Shpak,J. Mater. Sci. 26, 545 (1991).Google Scholar
  15. 15.
    V. V. Nenoshkalenko, M. A. Vasil'ev, A. A. Kordyuk, B. G. Nikitin, M. V. Bakuntseva, and P. P. Gorbik,Phys. Met. 12, 761 (1993).Google Scholar

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

Personalised recommendations