Artículo

X-ray absorption study of the Fe and Mo valence states in Sr2FeMoO6

Martins, H.P.; Prado, F.; Caneiro, AlbertoIcon ; Vicentin, F.C. ; Chaves, D.S.; Mossanek, R.J.O. ; Abbate, M.
Fecha de publicación: 09/04/2015
Editorial: Elsevier Science Sa
Revista: Journal Of Alloys And Compounds
ISSN: 0925-8388
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

We studied the Fe and Mo valence states in Sr2FeMoO6 using X-ray absorption spectroscopy. The exper- imental results were analyzed using atomic multiplet plus crystal field calculations. The analysis indi- cates that the Fe ions present a fairly ionic Fe3+ (3d5) valence, and that the Mo ions are in a strongly covalent Mo5+ (4d1) state. The presence of Fe ions in a 2+ valence state can be excluded from the Fe-L2,3 spectrum. These results can be understood taking into account the relative energy of the d-levels, the relative strength of the M d?O p mixing, and the exchange stabilization of the Fe3+ ion.
Palabras clave: Double Perovskite , Electronic Structure , X-Ray Absorption
 
Archivos asociados
 
Tamaño: 789.5Kb
Formato: PDF
.
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/3487
URL: http://www.sciencedirect.com/science/article/pii/S0925838815009640
DOI: http://dx.doi.org/10.1016/j.jallcom.2015.04.023
Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Martins, H.P.; Prado, F.; Caneiro, Alberto; Vicentin, F.C. ; Chaves, D.S.; et al.; X-ray absorption study of the Fe and Mo valence states in Sr2FeMoO6; Elsevier Science Sa; Journal Of Alloys And Compounds; 640; 9-4-2015; 511-516
Compartir
Altmétricas