2004/06/22 by Nobuo Furukawa, Yukitoshi Motome, Naoto Nagaosa
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Shape Memory Alloy Transformations #cond-mat.str-el
paper · pdf · doi:10.1016/j.physb.2005.01.366
published as Physica B: Cond. Matter 359-361, 1228 (2005) · 2 pages, 1 figure, submitted to SCES'04
arxiv created 2004/06/22 · openalex publication_date 2005/02/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.