Dugaev, V. K. and Litvinov, V. I. and Barnaś, J. and Slobodskyy, A. H. and Dobrowolski, W. and Vieira, M. (2003) Ferromagnetism in diluted magnetic semiconductors at low carrier density. physica status solidi (b), 236 (2), pp. 507-510. ISSN 0370-1972. eISSN 1521-3951. URL: http://dx.doi.org/10.1002/pssb.200301715. (ISI Web of Science).
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Official URL: http://dx.doi.org/10.1002/pssb.200301715
Abstract
We present a general approach to the problem of a ferromagnetic phase transition in diluted magnetic semiconductors with free carriers. The Curie temperature of ferromagnetic transition is calculated in the mean field approximation. The approach allows to analyze the effects of magnetic fluctuations and disorder on the Curie temperature. We also propose a new mechanism of exchange interaction between magnetic impurities at vanishing concentration of free carriers.
| Item Type: | Article |
|---|---|
| Divisions: | Centre of Technology and Systems 2003-2006 > CTS0306-A Microelectronics > CTS0306-A2 Microelectronics, Materials and Processes Departamento de Engenharia Electrotécnica > Electrónica |
| ID Code: | 1939 |
| Deposited By: | Elsa Abrantes |
| Deposited On: | 26 Feb 2010 18:05 |
| Last Modified: | 25 Mar 2011 13:54 |
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