Murugesan, M. ; Selvam, P. ; Sharon, M. ; Gupta, L. C. ; Pinto, R. ; Gopinath, C. S. ; Subramanian, S. (1997) The valence state of M-ions in the chemically stabilized YSr2Cu3-xMxO7+δ (M=Mo, W and Re) superconductors Applied Physics A: Materials Science & Processing, 64 (2). pp. 177-179. ISSN 0947-8396
Full text not available from this repository.
Official URL: http://www.springerlink.com/content/1d77lnl207nr6c...
Related URL: http://dx.doi.org/10.1007/s003390050461
Abstract
Single phase Ba- free Sr-based YSr2Cu3-xMxO7+δ (M = Mo, W and Re) compounds have been stabilized by chemical doping. Superconductivity is observed for these phases in the range 30-45 K. X-ray diffraction studies suggest a relatively small orthorhombicity compared to Ba-analogue. X-ray photoelectron spectroscopic investigations reveal that the stabilizing cations are in the hexavalent state. The observation of the higher oxidation state of M-ions accounts for the excess oxygen content in these phases which is in accordence with the diffraction results.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| ID Code: | 61788 |
| Deposited On: | 15 Sep 2011 12:06 |
| Last Modified: | 10 Jul 2012 08:54 |
Repository Staff Only: item control page
