Journal
ANNALS OF PHYSICS
Volume 322, Issue 11, Pages 2618-2634Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.aop.2007.01.010
Keywords
magnetic oxides; carrier mediated ferromagnetism; RKKY; magnetic polaron percolation
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We analyze the origin of ferromagnetism as a result of carrier mediation in diluted magnetic oxide semiconductors in the light of the experimental evidence reported in the literature. We propose that a combination of percolation of magnetic polarons at lower temperature and Ruderman-Kittel-Kasuya-Yosida ferromagnetism at higher temperature may be the reason for the very high critical temperatures measured (up to similar to 700 K). (c) 2007 Elsevier Inc. All rights reserved.
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