Paraconductivity in YBa2(Cu1−xNix)3O7–y and Bi2Sr2Ca1−xYxCu2O8+y
✍ Scribed by S.N. Bhatia; C.P. Dhard; P.V.P.S.S. Sastry; I.K. Gopalakrishnan; J.V. Yakhmi; R.M. Iyer
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 188 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
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📜 SIMILAR VOLUMES
We have investigated the dependence of the oxygen isotope effect on the hole density in the high-T~ cuprates Bi2Sr2CaCu2Os and YBa:Cu~Os. The hole density n was varied by partial replacement of Ca by Y (hole acceptor) in BizSr2CaCu2Os, and by partial replacement of Y by Ca (hole donor) in YBa2Cu4Os.
The concentration dependence of the transition temperature T c has been studied in the high-T c compounds (Y~ xTlx)-Ba2Cu307 y, Y(Ba 1 xKx)2Cu307 y and YBa2(Cu I xMg~)307 y. In the TI-compound, the results show little effect on T C. In the K-compound, T~ gradually drops with increasing K concentrati