Prasad, K. G. ; Kurup, M. B. ; Singh, Pragya ; Grover, A. K. ; Rao, G. V. Subba (1989) Estimation of oxygen content in high Tc superconductors: an accelerator based method Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions With Materials and Atoms, 36 (4). pp. 485-488. ISSN 0168-583X
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/016858...
Related URL: http://dx.doi.org/10.1016/0168-583X(89)90352-2
Abstract
It is now well known that the role played by oxygen is very important for the occurrence of superconductivity in the 1-2-3 type YBa2Cu3O7-x compounds. We have made an attempt to estimate the oxygen content relative to that of Ba in these compounds after various types of heat treatments, using the resonance elastic scattering and Rutherford backscattering of 3.01 MeV alpha particles. It is consistently observed that those samples, which show good superconducting properties, also contain relatively higher oxygen content (6-16%) as compared to non-superconducting ones. However, it is difficult to make absolute determinations of the oxygen content by this technique. The oxygen content in these samples has also been determined by a chemical method. The two results are compared and their relative merits and disadvantages are discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 14626 |
| Deposited On: | 12 Nov 2010 13:56 |
| Last Modified: | 02 Jun 2011 06:46 |
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