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Thermodynamic stability and superconductivity of the Bi–Sr–Ca(Y)–Cu–Li–O system

Published online by Cambridge University Press:  31 January 2011

Chen Xianhui ,
Lin Chun ,
Lu Bin ,
Qian Yitai ,
Cao Liezhao ,
Chen Zhaojia  and
Chen Zuyao
Chen Xianhui
Affiliation:
Department of Physics, University of Science & Technology of China (USTC), Hefei, Anhui 230026, People's Republic of China
Lin Chun
Affiliation:
Department of Applied Chemistry, University of Science & Technology of China (USTC), Hefei, Anhui 230026, People's Republic of China
Lu Bin
Affiliation:
Structure Research Laboratory, University of Science & Technology of China (USTC), Hefei, Anhui 230026, People's Republic of China
Qian Yitai
Affiliation:
Department of Applied Chemistry, University of Science & Technology of China (USTC), Hefei, Anhui 230026, People's Republic of China
Cao Liezhao
Affiliation:
Department of Physics, University of Science & Technology of China (USTC), Hefei, Anhui 230026, People's Republic of China
Chen Zhaojia
Affiliation:
Department of Physics, University of Science & Technology of China (USTC), Hefei, Anhui 230026, People's Republic of China
Chen Zuyao
Affiliation:
Department of Applied Chemistry, University of Science & Technology of China (USTC), Hefei, Anhui 230026, People's Republic of China
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Abstract

In order to understand the effects of the thermodynamic stability on superconductivity, the thermodynamic stability of the Bi2Sr2CaCu2-xLixOy system and the Bi2Sr2YCu2-xLixOy system was studied. It is found that the broad ranges (0 ≤ x ≤ 0.6) of solid solution may be thermodynamically stable at high temperatures for the Bi2Sr2CaCu2-xLixOy), system and the Bi2Sr2YCu2-xLixOy), system. At equilibrium at low temperatures, however, solid solubility is eliminated, and only the end member compounds and possibly intermediate compounds of fixed composition remain for 0.3 ≤ x ≤ 0.6. It suggests that Li can destroy the thermodynamic stability. Superconductivity is improved by Li-doping, which may be related to the thermodynamic instability.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 7 , July 1993 , pp. 1510 - 1514
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

1Schooley, J. F., Hosier, W. R., and Cohen, L., Phys. Rev. Lett. 12, 474 (1964).CrossRefGoogle Scholar
2Sleight, A.W., Phys. Today 44, 24 (1991).CrossRefGoogle Scholar
3Michel, C., Borel, M.M., Grandin, A., Deslandes, F., Provost, J., and Raveau, B., Z. Phys. B68, 421 (1987).Google Scholar
4Maeda, A. H., Tanaka, Y., Fukutomi, N., and Asano, T., Jpn.J. Appl. Phys. 27, 209 (1988).CrossRefGoogle Scholar
5Shi, D., Tang, M., Vandervort, K., and Claus, H., Phys. Rev. B39, 9091 (1989).Google Scholar
6Green, S. M., Jiang, C., Mei, Y., Luo, H. L., and Politis, C., Phys. Rev. B38, 5016 (1988).Google Scholar
7Horiuchi, T., Kawai, T., Mitsui, K., Ogura, K., and Kawai, S., Physica C168, 309 (1990).Google Scholar
8Fukushima, N., Niu, H., and Ando, K., Jpn. J. Appl. Phys. 27, 1432 (1988).Google Scholar
9Yoshizaki, Y., Fujikami, J., Ishigaki, T., and Asano, H., Physica C171, 315 (1990).Google Scholar
10Fukushima, N., Niu, H., and Ando, K., Jpn. J. Appl. Phys. 27, 790 (1988).Google Scholar
11Li, Y., Chenggao, F., Fanghua, L., Tingzhu, C., Guien, Z., Zhaojia, C., Zhiqiang, M., and Yuheng, Z., Modern Phys. Lett. B4, 363 (1990).Google Scholar