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Magnetization and magnetoresistive response of {LiMn_2O_4} near the charge ordering transition

Basu, Rajiv and Felser, Claudia and Maignan, Antoine and Seshadri, Ram (2000) Magnetization and magnetoresistive response of {LiMn_2O_4} near the charge ordering transition. In: Journal of Materials Chemistry, 10 (08). pp. 1921-1924.

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We report magnetization and magnetoresistance studies of the geometrically frustrated spinel compound {LiMn_2O_4} near its charge ordering temperature. The effect of a 7 T magnetic field is to very slightly shift the transition in the resistivity to lower temperatures resulting in large negative magnetoresistance with significant hysteresis. This hysteresis is not reflected in the magnetization. These observations are compared with what is found in the colossal magnetoresistance and charge ordering perovskite manganese oxides. The manner in which geometric frustration influences the coupling of charge and spin degrees of freedom is examined

Item Type: Journal Article
Publication: Journal of Materials Chemistry
Publisher: The Royal Society of Chemistry
Additional Information: Copyright of this article belongs to The Royal Society of Chemistry.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 02 Nov 2009 08:49
Last Modified: 19 Sep 2010 04:59
URI: http://eprints.iisc.ac.in/id/eprint/18027

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