Hegde, M. S. ; Satyalakshmi, K. M. ; Ramesh, S. ; Vasanthacharya, N. Y. ; Gopalakrishnan, J. (1992) New defect-perovskite oxides related to the yttrium-barium-copper oxide superconductor Materials Research Bulletin, 27 (9). pp. 1099-1106. ISSN 0025-5408
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002554...
Related URL: http://dx.doi.org/10.1016/0025-5408(92)90249-Y
Abstract
LaBa2CuCo2O8 and LaBa2Cu2CoO7.4 possessing defect-perovskite structures related to YBa2Cu3O7 (123) have been prepared. The cobalt in both the phases substitutes for the plane copper [Cu(2)] sites, preserving the Cu---O chains of the (123) structure. Accordingly, removal of oxygen from the new phases transforms the orthorhombic structure to the tetragonal structure of YBa2Cu3O7-6. LaBa2CuCo2O8 prepared above 1000°C adopts a disordered cubic perovskite structure.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Lanthanum; Barium; Cobalt; Copper Oxides |
| ID Code: | 12795 |
| Deposited On: | 11 Nov 2010 08:55 |
| Last Modified: | 03 Jun 2011 04:38 |
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