cond-mat

# Title:Novel aspects and strong correlation in the electronic structure of Sr$_2$FeMoO$_6$

Abstract: We investigate the electronic structure of Sr$_2$FeMoO$_6$ combining photoemission spectroscopy with a wide range of photon energies and electronic structure calculations based on first-principle as well as model Hamiltonian approaches to reveal several interesting aspects. We find evidence for unusually strong Coulomb correlation effects both in the Fe 3$d$ and O 2$p$ states, with an enhanced manifestation in the majority spin channel. Additionally, O 2$p$ states exhibit a spin-splitting of nonmagnetic origin, which nevertheless is likely to have subtle influence on the stability of novel ferromagnetism of this compound.
 Comments: 17 pages, 6 figures. Accepted in Physical Rev. B Subjects: Strongly Correlated Electrons (cond-mat.str-el) Cite as: arXiv:cond-mat/0212458 [cond-mat.str-el] (or arXiv:cond-mat/0212458v1 [cond-mat.str-el] for this version)

## Submission history

From: Sugata Ray [view email]
[v1] Wed, 18 Dec 2002 19:30:13 UTC (575 KB)
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