Electronic Structure of $Sr_2FeMoO_6$

Sarma, DD and Mahadevan, Priya and Dasgupta, Saha T and Ray, Sugata and Kumar, Ashwani (2000) Electronic Structure of $Sr_2FeMoO_6$. In: Physical Review Letters, 85 (12). pp. 2549-2552.

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Abstract

We have analyzed 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 intra-atomic 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 renormalized interaction strengths.

Item Type:	Journal Article
Publication:	Physical Review Letters
Publisher:	American Physical Society
Additional Information:	Copyright of this article belongs to American Physical Society.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	11 Aug 2006
Last Modified:	19 Sep 2010 04:30
URI:	http://eprints.iisc.ac.in/id/eprint/8037

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