Temperature and Magnetic Field Dependence of the Critical Current in Polycrystalline Ba2YCu3Oy

  • H. Obara
  • H. Yamasaki
  • Y. Kimura
  • Y. Higashida
  • T. Ishihara
Conference paper


Temperature and magnetic field dependence on the critical current density J c of polycrystalline high-T c oxide superconductor, Ba 2 YCu 3 O y , have been measured. In the low magnetic field range, 0.6 ~ 7 kOe, the J c behavior changed at around 70 K. Below 70 K, J c showed different temperature dependence between field cooling and zero-field cooling, that is, the J c value measured when the sample was cooled in a fixed magnetic field, was different from that measured when the sample was cooled in zero magnetic field and then a magnetic field was applied. Above 70 K, however, such different temperature dependence on J c was not observed. These experimental results can be attributed to the effects of anisotropy, and a crossover between the two-and three-dimensional superconductivity is considered to occur.


Critical Current Density Magnetic Field Dependence Field Cool Oxide Superconductor Dimensional Crossover 
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  1. [1]
    J. G. Bednortz and K. A. Müller: Z. Phys. B64 (1986) 189.ADSCrossRefGoogle Scholar
  2. [2]
    K. Kishio, K. Kitazawa, S. Kanbe, I. Yasuda, N. Sugii, H. Takagi, S. Uchida, K. Fueki and S. Tanaka: Chem. Lett. 182 (1987) 429.CrossRefGoogle Scholar
  3. [3]
    M. K. Wu, J. R. Ashburn, C. J. Torng, P. H. Hor, R. L. Hor, R. L. Meng, L. Gao, Z. J. Huang, Y. Q. Wang and C. W. Chu: Phys. Rev. Lett. 58 (1987) 908.ADSCrossRefGoogle Scholar
  4. [4]
    H. Maeda, Y. Tanaka, M. Fukutomi and T. Asano: Jpn. J. Appl. Phys. 27 (1988) L209.ADSCrossRefGoogle Scholar
  5. [5]
    Y. Enomoto, T. Murakami, M. Suzuki and K. Moriwaki: Jpn. J. Appl. Phys. 26 (1987) L1248.ADSCrossRefGoogle Scholar
  6. [6]
    H. Kumakura, M. Uehara, Y. Yoshida and K. Togano: Phys. Lett. A 124 (1987) 367.ADSCrossRefGoogle Scholar
  7. [7]
    T. Matsushita, M. Iwakuma, Y. Sudo, B. Ni, T. Kisu, K. Funaki, M. Takeo and K. Yamafuji: Jpn. J. Appl. Phys. 26 (1987) L1524.ADSCrossRefGoogle Scholar
  8. [8]
    R. A. Camps, J. E. Evetts, B. A. Glowacki, S. B. Nencowb and W. M. Stobbs: J. Mater. Res. 2 (1987) 750.ADSCrossRefGoogle Scholar
  9. [9]
    J. W. Ekin, A. J. Panson and B. A. Blankenship: Appl. Phys. Lett. 52 (1988) 33.CrossRefGoogle Scholar
  10. [10]
    M. Tokumoto, M. Hirabayashi, H. Ihara, K. Murata, N. Terada, K. Senzaki and Y. Kimura: Jpn. J. Appl. Phys. 26 (1987) L517.ADSCrossRefGoogle Scholar
  11. [11]
    J. W. Ekin, A. I. Braginski, A. J. Panson, M. A. Janosko, D. W. Caponell, N. J. Zaluzec, B. Flandermeyer, O. F. de Lima, M. Hong, J. Kwo and S. H. Jiou: J. Appl. Phys. 62 (1987) 4821.ADSCrossRefGoogle Scholar
  12. [12]
    W. Lawrence and S. Doniach: Proc. Int. Conf. on Low-Temperature Physics., Kyoto, 1971 (Academic Press of Japan, Kyoto, 1971) p.361.Google Scholar
  13. [13]
    R. A. Klemm, A. Luther and M. R. Beasley: Phys. Rev. B12 (1975) 877.ADSGoogle Scholar
  14. [14]
    P. P. Freitas, C. C. Tsuei and T. S. Plaskett: Phys. Rev. B36 (1987) 833.ADSGoogle Scholar
  15. [15]
    A. Kapitulnik, M. R. Beasley, C. Custellani and C. D. Castro: Phys. Rev. B37 (1988) 537.ADSGoogle Scholar
  16. [16]
    K. Kanoda, T. Kawagoe, M. Hasumi, T. Takahashi, S. Kagoshima and T. Mizoguchi: preprint.Google Scholar

Copyright information

© Springer Japan 1989

Authors and Affiliations

  • H. Obara
    • 1
  • H. Yamasaki
    • 1
  • Y. Kimura
    • 1
  • Y. Higashida
    • 2
  • T. Ishihara
    • 2
  1. 1.Electrotechnical LaboratoryTsukuba, 305Japan
  2. 2.Japan Fine Ceramics CenterAtsuta-ku, Nagoya, 456Japan

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