Sarma, D. D. (1988) Electronic structure of high-Tc superconductors from core-level spectroscopies Physical Review B: Condensed Matter and Materials Physics, 37 (13). pp. 7948-7951. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v37/i13/p7948_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.37.7948
Abstract
Using the configuration-interaction approach, we show that various core-level spectroscopic observations on the high-Tc superconducting oxides can be consistently described in terms of mixing between d9 and d10 configurations, with a negligible amount of the d8 (Cu3+) state. From our analysis of the existing experimental data, we provide evidence of a wide and continuous valence transition in these systems as a function of temperature. The changes in the hybridization strengths deduced here are indicative of structural modifications of the square-planar CuO4 clusters with decreasing temperature.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 46240 |
| Deposited On: | 02 Jul 2011 13:53 |
| Last Modified: | 02 Jul 2011 13:53 |
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