Ganguly, R. ; Rajagopal, H. ; Sequeira, A. ; Yakhmi, J. V. ; Dasannacharya, B. A. (1995) Influence of simultaneous substitution of Ca and Co in a YBa2Cu3O7-δ superconductor: neutron structural studies Physica B: Condensed Matter, 213-214 . pp. 90-93. ISSN 0921-4526
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/092145...
Related URL: http://dx.doi.org/10.1016/0921-4526(95)00071-G
Abstract
Neutron structural study shows that partial substitution of Co for Cu in YBa2Cu3O7-δ leads to an uptake of excess oxygen in chain-layers, but causes some oxygen depletion in CuO2 planes. Coupled Co/Ca substitution arrests uptake of excess oxygen which could be the cause of partial restoration of Tc vis-a-vis the samples doped with Co only. A new feature of the doped samples is the presence of a small amount of oxygen at the (0,0,½) sites.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 10171 |
| Deposited On: | 03 Nov 2010 04:18 |
| Last Modified: | 28 May 2011 06:27 |
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