Critical test for Altshuler-Aronov theory: Evolution of the density of states singularity in double perovskite Sr$_2$FeMoO$_6$ with controlled disorder

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dc.creatorKobayashi, M.
dc.creatorTanaka, K.
dc.creatorFujimori, A.
dc.creatorRay, Sugata
dc.creatorSarma, D. D.
dc.date2007-04-13
dc.date2007-04-17
dc.date.accessioned2026-07-07T08:14:12Z
dc.date.available2026-07-07T08:14:12Z
dc.descriptionWith high-resolution photoemission spectroscopy measurements, the density of states (DOS) near the Fermi level ($E_\mathrm{F}$) of double perovskite Sr$_2$FeMoO$_6$ having different degrees of Fe/Mo antisite disorder has been investigated with varying temperature. The DOS near $E_\mathrm{F}$ 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.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0704.1688
dc.identifierhttp://arxiv.org/abs/0704.1688
dc.identifierPhys. Rev. Lett. 98, 246401 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.246401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/133038
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.titleCritical test for Altshuler-Aronov theory: Evolution of the density of states singularity in double perovskite Sr$_2$FeMoO$_6$ with controlled disorder
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