2006/03/31 by M. J. Calderon, M.J. Calderón, S. Das Sarma · 2 citations
Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #Ferromagnetism #Magnetic and transport properties of perovskites and related materials #Magnetic semiconductor #Magnetic susceptibility #Magnetization #Percolation (cognitive psychology) #Percolation theory #Percolation threshold #Polaron #ZnO doping and properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1016/j.aop.2007.01.010
published as Annals of Physics 322, 2618 (2007). · 10 pages, 3 figures; formulae and references added, discussion extended
arxiv created 2006/12/11 · openalex publication_date 2007/02/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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).