Effects of disorder on the exchange coupling in (Ga,Mn)As diluted magnetic semiconductors



Título del documento: Effects of disorder on the exchange coupling in (Ga,Mn)As diluted magnetic semiconductors
Revue: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000310582
ISSN: 0103-9733
Autores: 1

2
3
Instituciones: 1Universidade de Sao Paulo, Instituto de Fisica, Sao Paulo. Brasil
2Universidade Federal do Rio de Janeiro, Instituto de Fisica, Rio de Janeiro. Brasil
3Universidade Estadual de Campinas, Instituto de Fisica, Campinas, Sao Paulo. Brasil
Año:
Periodo: Sep
Volumen: 36
Número: 3B
Paginación: 813-816
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés A theoretical study of the effects of disorder on the Mn-Mn exchange interactions for Ga1-xMn xAs diluted magnetic semiconductors is presented. The disorder is intrinsically considered in the calculations, which are performed using an ab initio total energy density-functional approach, for a 128 atoms supercell, and by considering a variety of configurations with 2, 3 and 4 Mn atoms. Results are obtained for the effective J
Disciplinas: Física y astronomía
Palabras clave: Física de materia condensada,
Sistemas magnéticos disueltos,
Semiconductores,
Intercambio
Keyword: Physics and astronomy,
Condensed matter physics,
Diluted magnetic systems,
Semiconductors,
Exchange
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