On the bonding nature of electron states for the Fe-Mo double perovskite

E. Carvajal, R. Oviedo-Roa, M. Cruz-Irisson, O. Navarro

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Resumen

The electronic transport as well as the effect of an external magnetic field has been investigated on manganese-based materials, spinels and perovskites. Potential applications of double perovskites go from magnetic sensors to electrodes in solid-oxide fuel cells; besides the practical interests, it is known that small changes in composition modify radically the physical properties of double perovskites. We have studied the Sr2FeMoO6 double perovskite compound (SFMO) using first-principles density functional theory. The calculations were done within the generalized gradient approximation (GGA) scheme with the Perdew-Burke-Ernzerhof (PBE) functional. We have made a detailed analysis of each electronic state and the charge density maps around the Fermi level. For the electronic properties of SFMO it was used a primitive cell, for which we found the characteristic half-metallic behavior density of states composed by eg and t2g electrons from Fe and Mo atoms. Those peaks were tagged as bonding or antibonding around the Fermi level at both, valence and conduction bands.

Idioma originalInglés
Título de la publicación alojada7th International Conference on Low Dimensional Structures and Devices, LDSD 2011
EditorialAmerican Institute of Physics Inc.
Páginas18-21
Número de páginas4
ISBN (versión impresa)9780735412323
DOI
EstadoPublicada - 2014
Evento7th International Conference on Low Dimensional Structures and Devices, LDSD 2011 - Telchac, México
Duración: 22 may. 201127 may. 2011

Serie de la publicación

NombreAIP Conference Proceedings
Volumen1598
ISSN (versión impresa)0094-243X
ISSN (versión digital)1551-7616

Conferencia

Conferencia7th International Conference on Low Dimensional Structures and Devices, LDSD 2011
País/TerritorioMéxico
CiudadTelchac
Período22/05/1127/05/11

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