Magnetization and magnetoresistive response of LiMn2O4 near the charge ordering transition

Basu, Rajiv and Felser, Claudia and Maignan, Antoine and Seshadri, Ram (2000) Magnetization and magnetoresistive response of LiMn2O4 near the charge ordering transition. In: Journal of Materials Chemistry, 10 (8). pp. 1921-1924.

PDF charge.pdf - Published Version Restricted to Registered users only Download (99kB) | Request a copy

Abstract

We report magnetization and magnetoresistance studies of the geometrically frustrated spinel compound LiMn2O4 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:	Royal Society of Chemistry
Additional Information:	Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	28 Jul 2010 10:51
Last Modified:	19 Sep 2010 06:13
URI:	http://eprints.iisc.ac.in/id/eprint/30993

Actions (login required)

View Item