Magnetization and magnetoresistive response of LiMn2O4 near the charge ordering 
transition

Basu, R; Felser, C.; Maignan, A; Seshadri, R

doi:10.1039/b000952k

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Magnetization and magnetoresistive response of LiMn₂O₄ near the charge ordering transition

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Basu, R., Felser, C., Maignan, A., & Seshadri, R. (2000). Magnetization and magnetoresistive response of LiMn₂O₄ near the charge ordering transition. Journal of Materials Chemistry, 10(8), 1921-1924. doi:10.1039/b000952k.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-4FCD-6

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.