Polaron percolation in diluted magnetic semiconductors.
By A. Kaminski, S. Das Sarma. Physical Review Letters, 2002
610 citations recorded by the source corpus.
We theoretically study the development of spontaneous magnetization in diluted magnetic semiconductors as arising from a percolation of bound magnetic polarons. Within the framework of a generalized percolation theory we derive analytic expressions for the Curie temperature and the magnetization in the limit of low carrier density, obtaining excellent quantitative agreement with Monte Carlo simulation results and good qualitative agreement with experimental results.
Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/f0c05b597774f8a491812249b2579db46847c58e
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In Condensed Matter Physics
In Electronic, Optical and Magnetic Materials
In Materials Chemistry
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Citations in the corpus
- Donor impurity band exchange in dilute ferromagnetic oxides (2005, background): “A somewhat lower value than that given by the hard-sphere approximation is expected in practice, and the threshold will be temperature-dependen”
- Oxides, Oxides, and More Oxides: High-κ Oxides, Ferroelectrics, Ferromagnetics, and Multiferroics (2009, background): “497 , 498 An electron associated with a donor defect (oxygen vacancy for example) is confined in a hydrogenic orbital of radius r H = ϵ( m / m *) a 0 , where ϵ is the high-frequency dielectric constant, m is the electron mass, m * is the effective mass of the donor electrons,”