Rajarajan, A. K. ; Guptasarma, P. ; Palkar, V. R. ; Ayyub, P. ; Multani, M. S. ; Gupta, L. C. ; Vijayaraghavan, R. (1988) Non-isovalent substitution of Ba2+ in superconducting YBa2Cu3O7−y Physica C: Superconductivity, 153-155 . pp. 894-895. ISSN 0921-4534
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0921-4534(88)80142-4
Abstract
We report the structural, magnetic and superconducting properties of YBa2−xMxCu3O7 (M=La3+ or K+). Single-phase compounds form over a wide range of x in YBa2−xMxCu3O7 and up to x = 0.2 in YBa2−xMxCu3O7. A substituent concentration of 15% triggers an orthorhombic to tetragonal phase15 transition in both systems. In spite of the associated disorder in the Cu(1)-0(1) chains, such a transition does not affect Tc drastically. Tc gets systematically depressed with increasing x. A temperature-dependent paramagnetic response is observed in YBa2−xMxCu3O7 between 90 and 300K.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 61888 |
| Deposited On: | 15 Sep 2011 11:48 |
| Last Modified: | 15 Sep 2011 11:48 |
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