Electronic Structure of Sr_2FeMoO_6

Preprint

28 August 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0008401

Abstract

We have analysed the unusual electronic structure of Sr_2FeMoO_6 combining ab-initio and model Hamiltonian approaches. Our results indicate that there are strong enhancements of the intraatomic exchange strength at the Mo site as well as the antiferromagnetic coupling strength between Fe and Mo sites. We discuss the possibility of a negative effective Coulomb correlation strength (U_{eff}) at the Mo site due to these renormalised interaction strengths.

Keywords

STRUCTURE OF SR_2FEMOO_6
SR_2FEMOO_6 COMBINING
ELECTRONIC STRUCTURE
UNUSUAL ELECTRONIC
EXCHANGE STRENGTH
ANTIFERROMAGNETIC
AB INITIO
MO SITE
COULOMB

All Related Versions

Version 1, 2000-08-28, ArXiv
Published version: Physical Review Letters, 85 (12), 2549.

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