English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/122095
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Breakdown of Hund’s third rule for intrinsic magnetic moments

AutorHerrero-Albillos, Julia; Bartolomé, Fernando; García, L. M.; Young, A. T.
Fecha de publicación2012
CitaciónICM 2012
ResumenHund’s rules were originally developed in an atomistic picture, and it is therefore surprising that they also hold, almost universally, for molecules and solids. Here we report the first experimental example of a breakdown of Hund’s third rule in an intrinsic magnetic moment: the Co 3d moment of the unorthodox ferrimagnet ErCo2. The application of magneto-optical sum rules to X-ray magnetic circular dichroic spectra allows for the determination of the Co orbital and spin magnetic moments both in the ferrimagnetic and paramagnetic phases of ErCo2. In agreement with the predictions of Hund’s third rule, Co orbital and spin moments are parallel throughout the overall temperature range, except in a narrow temperature window within the paramagnetic phase, in which they are overall coupled antiparallel. A qualitative consideration of the balance between the interatomic and intra-atomic interactions acting on the cobalt atoms explains the phenomenon. This situation also leads to the observation of other exotic forms of magnetism in solids, such as a “pure” spin or a “pure” orbital moment on the same compound at selected temperature and fields.
DescripciónResumen del póster presentado a la 19th International Conference on Magnetism celebrada en Korea del 8 al 13 de julio de 2012.
URIhttp://hdl.handle.net/10261/122095
Aparece en las colecciones: (ICMA) Comunicaciones congresos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.