Hegde, M. S. (1988) Oxygen desorption from high Tc YBa2Cu3O7-δ (δ= 0.05, 0.5) Materials Research Bulletin, 23 (8). pp. 1171-1176. 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(88)90208-5
Abstract
From a temperature programmed desorption study employing a quadrupole mass spectrometer, the superconducting oxide YBa2Cu3O7-δ (δ = 0.05) showed two distinct oxygen desorption peaks, one below and one above 470°C. The activation energy of oxygen desorption of the superconducting oxide was 28 Kcals/mole and that of non-superconducting oxide (YBa2Cu3O6.5) was 54 Kcals/mole. No impurity peaks due to H2O, CO and CO2 from the bulk or adsorbed on surfaces could be observed when a well prepared superconducting oxide was heated up to 650°C.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Superconductors; Oxides; Copper; Barium; Yttrium |
| ID Code: | 15807 |
| Deposited On: | 13 Nov 2010 12:30 |
| Last Modified: | 03 Jun 2011 09:10 |
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