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Título:
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Temperature dependence of the magnetic properties in LaMnO_(3+?)
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Autores:
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Romero, J.J. ;
Cuadrado, R. ;
Arroyo, A. ;
García, M. A. ;
Hernando Grande, Antonio ;
Cortés Gil, R ;
González Calbet, J. M. ;
Vallet Regí, V.
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Tipo de documento:
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texto impreso
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Editorial:
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American Institute of Physics, 2006-04-15
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física de materiales
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Materia = Ciencias: Física: Física del estado sólido
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Tipo = Artículo
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Resumen:
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Data are presented on the thermal dependence of the hysteretic properties of cationic vacancies including manganite samples of composition LaMnO_(3+?)(?=0.05 and 0.12). Our results evidence the presence in both samples of two magnetic phases having ferro- and antiferromagnetic orders, respectively. The temperature dependence of the coercivity and relaxational properties of the samples is closely linked to the connectivity of the magnetic moment bearing Mn^(3+)-Mn^(4+) ferromagnetic clusters that demagnetize independently in the case of the ?=0.05 sample and collectively in that of the ?=0.12 one, as evidenced from the activation volume results (delta=0.05) which yielded a size of the same order magnitude as that obtained in previous works for the Mn^(3+)-Mn^(4+) ferromagnetic cluster size.
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En línea:
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https://eprints.ucm.es/44129/1/HernandoGrande%2012%20libre.pdf
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