Advertisement

Journal of Low Temperature Physics

, Volume 85, Issue 3–4, pp 283–294 | Cite as

Anomalies of the magnetic properties of granular oxide superconductor BaPb1 −xBi x O3

  • M. Borik
  • M. Chernikov
  • V. Veselago
  • V. Stepankin
Article

Abstract

Magnetization curves (M(H)) of granular samples of the oxide superconductor BaPb1 −xBi x O3 show hysteretic behavior well below the lower critical mag netic fieldHc1 of the grains.M(H) curves contain two linear segments and can be described satisfactorily by two parameters: the upper and lower characteristic magnetic fields. The lower characteristic field corresponds to the end of theM(H) segment with nearly perfect diamagnetic susceptibility, while the upper one corresponds to the beginning of the second linear segment on theM(H) curve. The estimates of these parameters obtained in terms of the weakly coupled loops model are in good agreement with the experimental data. The effect of the BaPb1 −xBi x O3 granular samples' sintering time on the magnetization curve as a way to control the weakly coupled system parameters is examined and discussed.

Keywords

Oxide Experimental Data Magnetic Field Magnetic Property Magnetic Material 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P. England, F. Goldie, and A. D. Caplin,J. Phys. F 17, 447 (1987).Google Scholar
  2. 2.
    J. F. Kwaket al., Phys. Rev. B37, 9749 (1988).Google Scholar
  3. 3.
    H. Dersch and G. Blatter,Phys. Rev. B38, 11391 (1988).Google Scholar
  4. 4.
    M. Kohl, M. Odehnal, M. Plintovich, and S. Safrata,J. Low Temp. Phys. 74, 503 (1989).Google Scholar
  5. 5.
    E. B. Sonin,Pis'ma v Zh. Eksp. Teor. Fiz. 47, 415 (1988).Google Scholar
  6. 6.
    J. R. Clem,Physica C 153–155, 51 (1988).Google Scholar
  7. 7.
    J. Rosenblatt, P. Peyral, and A. Raboutou,Inhomogeneous Superconductors '79 (AIP Conf. Proc. 58, New York, 1980), D. Gubser, T. L. Francavilla, S. A. Wolf, J. R. Leibowitz, eds., p. 272.Google Scholar
  8. 8.
    M. Suzuki, V. Enomoto, and T. Murakami,J. Appl. Phys. 56, 2083 (1984).Google Scholar
  9. 9.
    V. N. Stepankinet al., JETP Lett. 41, 23 (1985).Google Scholar
  10. 10.
    A. V. Kuznetsov, E. A. Protasov, and V. N. Stepankin,Superconductivity in BaPb 1−x Bi x O 3 (Energoizdat, Moscow 1987).Google Scholar
  11. 11.
    L. R. Gilbert, R. Roy, and B. Messier,Mat. Res. Bull. 17, 467 (1982).Google Scholar
  12. 12.
    A. V. Kuznetsov and V. N. Stepankin,Superconductivity in BaPb 1−itx Bi xO3 (Energoizdat, Moscow, 1987).Google Scholar
  13. 13.
    B. Battlog,Physica B + C 126, 275 (1984).Google Scholar
  14. 14.
    K. Likharev,Dynamics of Josephson Junctions and Circuits (Gordon and Breach, London, 1986), Chap. 7.2.Google Scholar
  15. 15.
    A. Barone and G. Paterno,Physics and Applications of the Josephson Effect (Wiley, New York, 1982).Google Scholar
  16. 16.
    J. R. Clem and V. Kogan,Jpn. J. Appl. Phys. Suppl.26-3, 1161 (1987).Google Scholar
  17. 17.
    D. P. Moiseev and S. K. Uvarova,Izvestia Akademii Nauk SSSR, Seria Neorganicheskie Materialy 17, 1685 (1981).Google Scholar

Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • M. Borik
    • 1
  • M. Chernikov
    • 1
  • V. Veselago
    • 1
  • V. Stepankin
    • 1
  1. 1.General Physics Institute of the Academy of Sciences of the USSRMoscowUSSR

Personalised recommendations