Theory of carrier mediated ferromagnetism in dilute magnetic oxides

Details Theory of carrier mediated ferromagnetism in dilute magnetic oxides Theory of carrier mediated ferromagnetism in dilute magnetic oxides

2006-03-07

arxiv.org/abs/cond-mat/0603182v2

Annals of Physics 322, 2618 (2007).

Physics

Condensed Matter

Materials Science

10 pages, 3 figures; formulae and references added, discussion extended

Scientific paper

10.1016/j.aop.2007.01.010

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 ~700 K).

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