Yokoya, T. ; Chainani, A. ; Takahashi, T. ; Katayama-Yoshida, H. ; Kasai, M. ; Tokura, Y. ; Shanthi, N. ; Sarma, D. D. (1996) Evidence for correlation effects in Sr2RuO4 from resonant and X-ray photoemission spectroscopy Physical Review B: Condensed Matter and Materials Physics, 53 (13). pp. 8151-8154. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v53/i13/p8151_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.53.8151
Abstract
We study the electronic structure of Sr2RuO4, a noncuprate layered superconductor (Tc=0.93 K), using electron spectroscopy. X-ray photoemission spectroscopy shows that the single particle occupied density of states (DOS) is in fair agreement with the calculated DOS. However, resonant photoemission spectroscopy across the Ru 4p-4d threshold establishes the existence of a correlation satellite to the Ru 4d band. The results indicate substantial charge-transfer character at the Fermi level, with on-site correlations Udd comparable in magnitude to the Ru-O hopping integral, like the cuprates.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 46298 |
| Deposited On: | 04 Jul 2011 06:47 |
| Last Modified: | 04 Jul 2011 06:47 |
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