Kobayashi, M. ; Tanaka, K. ; Fujimori, A. ; Ray, Sugata ; Sarma, D. D. (2007) Critical test for Altshuler-Aronov theory: evolution of the density of states singularity in double perovskite Sr2FeMoO6 with controlled disorder Physical Review Letters, 98 (24). 246401_1-246401_4. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v98/i24/e246401
Related URL: http://dx.doi.org/10.1103/PhysRevLett.98.246401
Abstract
With high-resolution photoemission spectroscopy measurements, the density of states (DOS) near the Fermi level (EF) of double perovskite Sr2FeMoO6 having different degrees of Fe/Mo antisite disorder has been investigated with varying temperature. The DOS near EF showed a systematic depletion with increasing degree of disorder, and recovered with increasing temperature. Altshuler-Aronov (AA) theory of disordered metals well explains the dependences of the experimental results. Scaling analysis of the spectra provides experimental indication for the functional form of the AA DOS singularity.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 46358 |
| Deposited On: | 04 Jul 2011 12:09 |
| Last Modified: | 04 Jul 2011 12:09 |
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