Entropy-Driven Reentrant Behavior in CMR Manganites

Nobuo Furukawa; Yukitoshi Motome; Naoto Nagaosa

doi:10.1016/j.physb.2005.01.366

Entropy-Driven Reentrant Behavior in CMR Manganites

Strongly Correlated Electrons 2007-05-23 v1

Authors: 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.

Keywords

manganites

Cite

@article{arxiv.cond-mat/0406504,
  title  = {Entropy-Driven Reentrant Behavior in CMR Manganites},
  author = {Nobuo Furukawa and Yukitoshi Motome and Naoto Nagaosa},
  journal= {arXiv preprint arXiv:cond-mat/0406504},
  year   = {2007}
}

Comments

2 pages, 1 figure, submitted to SCES'04

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