Phase diagram and influence of defects in the double perovskites

The phase diagram of the double perovskites of the type Sr_(2-x)La_(x)FeMoO_(6) is analyzed, with and without disorder due to antisites. In addition to an homogeneous half metallic ferrimagnetic phase in the absence of doping and disorder, we find antiferromagnetic phases at large dopings, and other...

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Detalhes bibliográficos
Autores: Alonso, J. L., Fernández Pérez, Luis Antonio, Guinea, F., Lesmes, F., Martín Mayor, Víctor
Formato: artículo
Fecha de publicación:2003
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51928
Acesso em linha:https://hdl.handle.net/20.500.14352/51928
Access Level:acceso abierto
Palavra-chave:53
51-73
Low-field magnetoresistance
Site disorder
Sr2FeMoO6
Magnetization
Oxide.
Física (Física)
Física-Modelos matemáticos
22 Física
Descrição
Resumo:The phase diagram of the double perovskites of the type Sr_(2-x)La_(x)FeMoO_(6) is analyzed, with and without disorder due to antisites. In addition to an homogeneous half metallic ferrimagnetic phase in the absence of doping and disorder, we find antiferromagnetic phases at large dopings, and other ferrimagnetic phases with lower saturation magnetization, in the presence of disorder.