Gamma Radiation Effects on Some Properties of YBCO


Radiation effects of polycrystalline YBCO bulk sample irradiated by 60Co ϒ-rays from a dose of 1x106 up to 7.5x109 rad at room temperature on critical temperature and critical current were investigated. IR spectrum was also used to study the mechanism of the irradiation. A considerable dependence of these parameters upon irradiation dose was observed. No significant effects on critical temperature were found, but the critical current in zero magnetic field changed greatly. It shows a tendency to decrease with the increase of the irradiation dose except for a slight increase with the dose less than about 2x-107 rad and no simple relations between critical currents and irradiation doses was found. A typical case is that the critical current is reduced to about 60% when the dose reaches 5x-109 rad, but the dependence of critical currents on magnetic field shows that the critical currents are higher than that of the unirradiated one in the range of magnetic field higher than 100 Gauss and decrease more slowly in magnetic field compared with the unirradiated one. The results indicate that the defects produced by ϒ-ray irradiation are benefit to flux pinning in higher fields. IR spectra analysis reveals that the intensity of the peak responsible for the Cul-O1 chain vibration is decreased, indicating that the bond of the Cul-O1 may be partly broken through collision process of the Compton electron produced by the ϒ-ray. This effect probably gives rise to decrease of the critical currents.

This is a preview of subscription content, access via your institution.


  1. [1]

    J.G. Bednorz and K.A. Muller, Z. Phys., B64, (1986) 189.

    Article  Google Scholar 

  2. [2]

    R.B. Van Dover, E.M. Gyorgy, A.E. White, L.F. Schneemeyer, R.J. Felder and J.V. Waszczak. Appl. Phys. Lett. 56 (26), 25 June 1990, 2681.

    Article  Google Scholar 

  3. [3]

    G.O. Babakishvili, G.P. Kekelidze, N.P. Kekelidze and G.N. Tsintsadze, Fiz. Nizk. Temp. (USSR) 14 (1988) 1294.

    CAS  Google Scholar 

  4. [4]

    Teruo Kato, Mitsuo Watanabe, Yukio Kazumata, Hiroshi Naramoto, Tadao Iwata, Yujiro Ikeda, Hiroshi Maekawo and Tomoo Nakamura, Jpn. J. Appl. Phys., 27 (1988) L2097.

    CAS  Article  Google Scholar 

  5. [5]

    J. Bohandy, J. Suter, B.F. Kim, K. Moorjani and F.J. Adrian, Appl. Phys. Lett., 51 (1987) 2161.

    CAS  Article  Google Scholar 

  6. [6]

    J.W. Lee, H.S. Lessure, D.E. Laughlin, M.E. Mchenry, S.G. Sankar, J.O. Willis, J.R. Cost and M.P. Maley, Appl. Phys. Lett. 57 (20), 12 November 1990, 2150.

    CAS  Article  Google Scholar 

  7. [7]

    Y.G. Zhao, L.M. Chen, T.S. Shi, Y. Peng and L. Wang, Solid State Communication, 68 (1988) 847.

    CAS  Article  Google Scholar 

  8. [8]

    Y.G. Zhao, T.S. Shi, S.H. Hu and L.M. Xie, Mater. Lett., 8 (1988) 83.

    Article  Google Scholar 

  9. [9]

    J.D. Jorgensen, M.A. Beno, D.G. Hinks, L. Skoderholm, K.J. Volin, R.L. Hitterman, J.D. Grace, I.K. Schuller, C.U. Segre, K. Zhang and M.S. Kleefish, Phys. Rev. B 36 (1987) 3608.

    CAS  Article  Google Scholar 

  10. [10]

    J.D. Jorgensen, B.W. Veal, W.K. Kwok, G.W. Grabtree, A.U. Mezawa, L.J. Nowichi, S.P. Paulikas, L. Nurze, Phys. Rev. B 37 (1988) 106.

    Google Scholar 

  11. [11]

    W.K. Kwok, G.W. Grabtree, A. Umezawa, B.W. Veal, J.D. Jorgensen, S.K. Malik, L.J. Nowicki, S.P. Paulikas, L. Nunzez, Phys. Rev., B37 (1988) 106.

    Article  Google Scholar 

  12. [12]

    A.M. Campbell, ICEC-13, April 24-27, 1990, Beijing.

  13. [13]

    R.J. Cava, B. Batlogg, C.H. Chen, E.A. Rietman, S.M. Zahurak and D. Werder, Nature 329 (1987) 423; Phys. Rev. B 36 (1987) 5719.

    CAS  Article  Google Scholar 

  14. [14]

    S.C. Han, PhysicaC156 (1988) 765.

    Google Scholar 

Download references


The authors would like to thank Mr. L. Wang and Mrs. Z.X. Chen. This work is supported by The Chinese National Center for Research and Development.

Author information



Corresponding author

Correspondence to L. Luo.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Luo, L., Zhang, Y.H., Hu, S.H. et al. Gamma Radiation Effects on Some Properties of YBCO. MRS Online Proceedings Library 209, 861–865 (1990).

Download citation