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$Sr_{2}FeMoO_{6}$: A Prototype to Understand a New Class of Magnetic Materials

Ray, S and Sarma, DD (2005) $Sr_{2}FeMoO_{6}$: A Prototype to Understand a New Class of Magnetic Materials. In: Hyperfine Interactions, 160 (1&4). pp. 67-79.

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Abstract

We propose a new mechanism to explain the magnetic structure of a recently discovered magnetoresistive double perovskite oxide system, $Sr_{2}FeMoO_{6}$, with the help of detailed experimental and theoretical results. This model, based on a strong antiferromagnetic coupling between the local moment and the charge carriers arising from local hopping interactions, can give rise to ferromagnetic metallic as well as ferromagnetic insulating ground states. The relevance of this mechanism in understanding the magnetism in dilute magnetic semiconductors such as $Ga_{1-x}Mn_{x}$ As, is also discussed.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Springer.
Keywords: dilute magnetic semiconductor; double perovskite; magnetoresistance
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 25 Jan 2006
Last Modified: 27 Aug 2008 11:43
URI: http://eprints.iisc.ernet.in/id/eprint/5236

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