Sarma, D. D. ; Prabhakaran, K. ; Rao, C. N. R. (1988) Temperature dependence of the surface conductivity of YBa2Cu3O7−δ accompanying the change in the concentration of dimerized oxygen holes Solid State Communications, 67 (3). pp. 263-265. ISSN 0038-1098
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0038-1098(88)90613-8
Abstract
The intensity of inelastically scattered electrons measured by electron energy loss spectroscopy has been employed to monitor the surface conductivity of YBa2Cu3O6.9 as a function of temperature. The study shows a drastic change in surface conductivity precedes the superconducting transition at 90K. The increase in surface conductivity is accompanied by the formation of dimerized holes in the oxygen derived p-band. This phenomenon is not observed in the non-superconducting YBa2Cu3O6.2.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 42409 |
| Deposited On: | 02 Jun 2011 13:22 |
| Last Modified: | 16 Jul 2012 07:11 |
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