Critical test for Altshuler-Aronov theory: Evolution of the density of states singularity in double perovskite Sr2FeMoO6 with controlled disorder


Autoria(s): Kobayashi, M; Tanaka, K; Fujimori, A; Ray, Sugata; Sarma, DD
Data(s)

15/06/2007

Resumo

With high-resolution photoemission spectroscopy measurements, the density of states (DOS) near the Fermi level (E-F) of double perovskite Sr2FeMoO6 having different degrees of Fe/Mo antisite disorder has been investigated with varying temperature. The DOS near E-F 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.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/26138/1/e246401.pdf

Kobayashi, M and Tanaka, K and Fujimori, A and Ray, Sugata and Sarma, DD (2007) Critical test for Altshuler-Aronov theory: Evolution of the density of states singularity in double perovskite Sr2FeMoO6 with controlled disorder. In: Physical Review Letters, 98 (24).

Publicador

The American Physical Society

Relação

http://prl.aps.org/abstract/PRL/v98/i24/e246401

http://eprints.iisc.ernet.in/26138/

Palavras-Chave #Solid State & Structural Chemistry Unit
Tipo

Journal Article

PeerReviewed