Effect of P-anion codoping on the Curie temperature of GaMnAs diluted magnetic semiconductors

0348037 - FZÚ 2011 RIV US eng J - Článek v odborném periodiku
Bouzerar, R. - Máca, František - Kudrnovský, Josef - Bergqvist, L.
Effect of P-anion codoping on the Curie temperature of GaMnAs diluted magnetic semiconductors.
Physical Review. B. Roč. 82, č. 3 (2010), 035207/1-035207/6. ISSN 1098-0121
Grant CEP: GA ČR GA202/09/0775; GA ČR(CZ) GC202/07/J047
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: GaMnAs * calculations * Curie temperature * defects
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 3.772, rok: 2010

We present a parameter-free theory of the Curie temperatures for GaMnAs alloy samples with a very small content of P atoms prepared by ion-implented pulsed laser melting. The effect of compensating defects was first qualitatively modeled in the framework of the rigid-band, Curie temperatures were calculated within the self-consistent local RPA and Monte Carlo simulations. We obtain reasonable agreement of calculated and measured Curie temperatures.
Trvalý link: http://hdl.handle.net/11104/0188658