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Entropy-Driven Reentrant Behavior in CMR Manganites

Nobuo Furukawa·Yukitoshi Motome·Naoto Nagaosa
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Abstract

We discuss the origin of the reentrant behaviors of insulating states above the Curie temperature of the colossal magnetoresistance manganites. We consider a system where charge ordering and ferromagnetism compete with each other. In the presence of randomness which pins charge order fluctuations, entropy-driven reentrant behaviors will appear, which explains the typical temperature dependence of the resistivity for CMR manganites.

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Nobuo Furukawa, Yukitoshi Motome, Naoto Nagaosa. 2004-06-22. Entropy-Driven Reentrant Behavior in CMR Manganites. https://doi.org/10.1016/j.physb.2005.01.366

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