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Structure and Tc of La1−xYbxBa2Cu3O7-y Layered Perovskite Superconductors

Published online by Cambridge University Press:  28 February 2011

C. Jiang ,
S. M. Green ,
YU Mei ,
H. L. Luo  and
C. Politis
C. Jiang
Affiliation:
Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093–0114
S. M. Green
Affiliation:
Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093–0114
YU Mei
Affiliation:
Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093–0114
H. L. Luo
Affiliation:
Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093–0114
C. Politis
Affiliation:
Department of Electrical and Computer Engineering, University of California, Also at KFK Karlsruhe, West, Germany
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Extract

After the discovery of YBa2Cu3O7-y with an unusually high superconducting transition temperature (Tc), around 95 K [1], similar compounds were made by completely replacing Y by the other rare-earth elements. It was found that RBa2Cu3O7-y (RBCO; R = rare-earth) possessed the same orthorhombically distorted layered perovskite structure and virtually the same Tc for almost all R [2–8]. The exceptions are compounds with R = Ce, Pr and Tb. The stable tetravalent state of these three R elements, as contrasted with the stable trivalent state of the other R elements, may be the reason behind this problem [9]. But there are also problems in producing single-phase, high Tc samples with La, Yb and Lu substitutes [10–12]. One of the reasons for this may be the size of these R ions: the difference between their radii and that of Y3+ is comparably large. Here we present the results of our systematic study of the structure and transport properties of the series of compounds La1−xYbxBCO (0.05 ≤ × ≤ 0.95).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 911
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

[1] Wu, M. K., Ashbum, J. R., Tomg, C. J., Hor, P. H., Meng, R. L., Gao, L., Huang, Z. J., Wang, Y.Q., and Chu, C. W., Phys. Rev. Lett., 58, 908 (1987).Google Scholar
[2] Engler, E. M., Lee, V. Y., Nazzal, A. I., Beyers, R. B., Lim, G., Grant, P. M., Parkin, S. P., Ramirez, M. L., Vazquez, J. E., and Savoy, R. J., J. Am. Chem. Soc, 109, 2848 (1987).Google Scholar
[3] Yang, K. N., Dalichaouch, Y., Ferreira, J. M., Lee, B. W., Neumeier, J. J., Torka-chvili, M. S., Zhou, H., Maple, M. B., and Hake, R. R., Solid State Commun., 63, 515 (1987).Google Scholar
[4] Chu, C. W. (preprint).Google Scholar
[5] Tsurumi, S., Hikita, M., Iwata, T., Semba, K., and Kurihara, S., Japan. J. Appl. Phys. Lett., 26, L856(1987).Google Scholar
[6] Ohshima, S. and Wakiyama, T., Japan. J. Appl. Phys. Lett., 26, L815 (1987).Google Scholar
[7] Fisk, Z., Thompson, J. D., Zirngiebl, E., Smith, J. L., and Cheong, S. W., Solid State Commun., 62, 743 (1987).Google Scholar
[8] Luo, H. L., Green, S. M., Jiang, C., Mei, Yu, and Politis, C., presented at the 1987 Fall Meeting of The Metallurgical Society, Cincinnati, Ohio, U.S.A., October 12–14, 1987 (submitted to Metallurgical Transactions B.)Google Scholar
[9] Soderholm, L., Zhang, K., Hinks, D. G., Beno, M. A., Jorgensen, J. D., Segre, C. U., and Schuller, I. K., Nature, 328, 604 (1987).Google Scholar
[10] Asano, H., Ishigaki, T., and Takita, K., Japan. J. Appl. Phys. Lett., 26, L1064 (1987).Google Scholar
[11] Lee, S.-I., Golben, J. P., Lee, S. Y., Chen, X.-D., Song, Y., Noh, T. W., McMichael, R. D., Gaines, J. R., Cox, D. L., and Patton, B. R., (preprint).Google Scholar
[12] Yoshizaki, R., Sawada, H., Iwazumi, T., Saito, Y., Abe, Y., Ikeda, H., and Nakai, I., (submitted to the International Workshop on Novel Mechanisms of Superconductivity, Berkeley, California U.S.A., June 22–26, 1987).Google Scholar
[13] Yamada, T., Kinoshita, K., Matsuda, A., Watanabe, T., and Asano, Y., Proc. 18th Inti. Conf. on Low Temperature Physics, Kyoto, Japan, (1987), pg. 1035.Google Scholar
[14] Beno, M. A., Soderholm, L., Capone, D. W., Hinks, D. G., Jorgensen, J. D., Grace, J. D., Schuller, I.K., Segre, C. U. and Zhang, K., Appl. Phys. Lett., 51, 57 (1987).Google Scholar