Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-03T08:16:05.608Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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