Journal of Low Temperature Physics

, Volume 74, Issue 5–6, pp 503–517 | Cite as

Low-field magnetization curves of YBa2Cu3O7−x and BiSrCaCu2O5.5: Effects of Josephson medium

  • M. Kohl
  • M. Odehnal
  • M. Plintovič
  • S. Šafrata
Article
Received:

Abstract

We present the measurement of dc magnetization curve of three samples of high-Tc superconductors in relatively low magnetic field of ±50 mT and at temperaturesT=4.2 K andT=77 K by a SQUID susceptometer. The samples were polycrystalline YBa2Cu3O7−x, a single crystal of YBa2Cu3O7−x, and polycrystalline BiCaSrCu2O5.5. We have especially studied the influence of the Josephson medium inside our samples on their low-field magnetization. We have found closed hysteretic loops in the field ±4 mT with “virgin” and “granular” slopes in the sample of polycrystalline YBaCuO and clear flux jumps corresponding to the penetration of low-field (Josephson) vortices. The pinning of these vortices in our case is rather low. In polycrystalline sample of BiCaSrCuO, we have found only reversible magnetization curves corresponding to very low pinning and/or to relatively low number of weak links.

Keywords

Magnetic Field Vortex Magnetic Material Weak Link Magnetization Curve 
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.
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J. R. Clem and V. G. Kogan,Jpn. J. Appl. Phys. 26, 1161 (1987).Google Scholar
  2. 2.
    A. Raboutou, P. Peyral, J. Rosenblatt, C. Lebeau, O. Peňa, A. Perrin, C. Perrin, and M. Sergent,Europhys. Lett. 4, 321 (1987).Google Scholar
  3. 3.
    J. Rosenblatt, P. Peyral, A. Raboutou, and C. LebeauPhysica, in press.Google Scholar
  4. 4.
    J. Rosenblatt, C. Lebeau, P. Peyral, and A. Raboutou,A Workshop on the Josephson Effects-Achievements and Trends, Torino, September 1985.Google Scholar
  5. 5.
    C. Ebner and D. Stroud,Phys. Rev. B 31, 165 (1985).Google Scholar
  6. 6.
    K. A. Müller, M. Takashige, and G. Bednorz,Phys. Rev. Lett. 58, 1143 (1987).Google Scholar
  7. 7.
    Y. Imry and M. Strongin,Phys. Rev. B 24, 6353 (1981).Google Scholar
  8. 8.
    G. Deutscher and K. A. Müller,Phys. Rev. Lett. 59, 1745 (1987).Google Scholar
  9. 9.
    E. B. Sonin,Pisma v Zh. Eksp. Teor. Fiz. 47, 415 (1988) (in Russian).Google Scholar
  10. 10.
    C. Giovannela, C. Chappert, P. Beauvillain, and G. Collin,Int. J. Modern Phys. B1, 1011 (1987).Google Scholar
  11. 11.
    H. Küpfer, I. Apfelstedt, R. Flükiger, R. Meier-Hirmer R, W. Schauer, T. Wolf, and H. Wühl,International Discussion Meeting on High-T c Superconductors, Mauterndorf, Austria, February 7–11, (1988).Google Scholar
  12. 12.
    H. Küpfer, S. N. Green, C. Jiang, Y. Mei, H. L. Luo, R. Meier-Hirmer, and C. Politis,Z. Phys. B (1988), to be published.Google Scholar
  13. 13.
    E. Babic, Z. Marohnic, D. Drobac, M. Prestler, and N. Brnicevic, Interlaken preprint (1988).Google Scholar
  14. 14.
    R. B. Goldfarb, A. F. Clark, A. I. Braginski, and A. J. Panson,Cryogenics 27, 475 (1987).Google Scholar
  15. 15.
    M. S. Colclough, C. E. Gough, M. Keene, C. M. Muirhead N. Thomas, J. S. Abell, and S. Sutton,Nature 328, 47 (1987).Google Scholar
  16. 16.
    C. M. Pegrum, G. B. Donaldson, A. H. Carr, and A. G. Hendry,Appl. Phys. Lett. 51, 1364 (1987).Google Scholar
  17. 17.
    R. Tichý, M. Odehnal, V. Petříček, S. Šafrata, E. Pollert, J. Kamarád, J. Hejtmánek, O. Smrčková, and D. Sýkorová,J. Low Temp. Phys. 70, 187 (1988).Google Scholar
  18. 18.
    R. H. Koch, C. P. Umbach, G. J. Clark, P. Chaudhari, and R. B. Laibowitz,Appl. Phys. Rev. 51, 200 (1987).Google Scholar
  19. 19.
    J. E. Zimmerman, J. A. Beall, M. W. Cromar, and R. R. Ono,Appl. Phys. Lett. 51, 617 (1987).Google Scholar
  20. 20.
    V. F. Bobrakov, B. V. Vasiljev, and V. N. Polushkin, preprint P13-88-255, Dubna, USSR (1988) (in Russian).Google Scholar
  21. 21.
    N. V. Zavarickij, Institute of Physics, Moscow, private communication.Google Scholar
  22. 22.
    B. I. Verkinet al., preprint, FTINT Charkov.Google Scholar
  23. 23.
    G. B. Donaldson, M. Odehnal, C. M. Pegrum, and J. R. Buckley, Interlaken preprint (1988).Google Scholar
  24. 24.
    M. Kohl, M. Odehnal, K. Vacek, and S. Šafrata,Czech. J. Phys. B38, 457 (1988).Google Scholar
  25. 25.
    K. Khachaturyan, E. R. Weber, P. Tejedor, A. M. Stacy, and A. M. Portis,Phys. Rev. B 38, 8309 (1987).Google Scholar
  26. 26.
    R. Durny, J. Hautela, S. Ducharme, B. Lee, O. G. Symko, P. C. Taylor, D. J. Zheng, and J. A. Xu,Phys. Rev. B 36, 2361 (1987).Google Scholar
  27. 27.
    B. Perič, B. Rakvin, M. Prester, N. Brničevič, and A. Dulčič,Phys. Rev. B 37, 522 (1988).Google Scholar
  28. 28.
    M. Kohl, M. Odehnal, V. Petříček, R. Tichý, and S. Šafrata,J. Low Temp. Phys. 72, 319 (1988).Google Scholar
  29. 29.
    J. Růžička, T. Těthal, J. Prachařová, V. Gregor, and S. Šafrata,Czech. J. Phys. B37, 653 (1987).Google Scholar
  30. 30.
    P. Boháček, M. Nevřiva, F. Novotný, M. Odehnal, E. Pollert, J. Prachařová, J. Růžička, S. Šafrata, T. Těthal, B. Trunda, and A. Tříska,Czech. J. Phys. B38, 461 (1988).Google Scholar
  31. 31.
    P. L. Gammel, D. J. Bishop, G. J. Dolan, J. R. Kwo, C. A. Murray, L. F. Schneemeyer, and J. W. Waszczak,Phys. Rev. Lett. 59, 2592 (1987).Google Scholar
  32. 32.
    F. London,Superfluids (Dover, New York, 1987), p. 34.Google Scholar
  33. 33.
    R. Tichý, Institute of Physics, Prague, personal communication.Google Scholar
  34. 34.
    M. R. Cimberle, C. Ferdeghini, G. L. Nicchiotii, M. Putti, A. S. Siri, C. Rizzuto, C. A. Costa, M. Ferretti, C. L. Olcese, F. C. Matacotta, and F. Olzi,Supercond. Sci. Technol. 1, 30 (1988).Google Scholar
  35. 35.
    S. E. Male, J. Chilton, and A. D. Caplin,Physica C 153–155, 1483 (1988).Google Scholar
  36. 36.
    A. Ding, Z. Yu, K. Shi, and J. Yan,Physica C 153–155, 1509 (1988).Google Scholar
  37. 37.
    X. Yunhui, G. Weiyan, and K. Zeibig,Physica C 153–155, 1657 (1988).Google Scholar
  38. 38.
    V. Ottoboni, A. M. Ricca, G. Ripamonti, and S. Zannela,IEEE Trans. on Magn. 24, 1153 (1988).Google Scholar

Copyright information

© Plenum Publishing Corporation 1989

Authors and Affiliations

  • M. Kohl
    • 1
  • M. Odehnal
    • 1
  • M. Plintovič
    • 1
  • S. Šafrata
    • 1
  1. 1.Institute of PhysicsCzechoslovak Academy of ScienceCzechoslovakia

Personalised recommendations