English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/121257
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Morphology of the asymmetric iron–silicon interfaces

AutorBadía-Romano, L.; Rubín, Javier; Bartolomé, Fernando; Magen, Cesar; Bartolomé, Juan; Varnakov, S. N.; Ovchinnikov, S.; Rubio-Zuazo, J. ; Castro, Germán R.
Palabras claveFe/Si nanolayers
Interfaces
Fe silicides
Compositional depth
HAXPES
CEMS
Fecha de publicaciónabr-2015
EditorElsevier
CitaciónJournal of Alloys and Compounds 627: 136-145 (2015)
ResumenA systematic study of the iron–silicon interfaces formed upon preparation of (Fe/Si) multilayers has been performed by combination of modern and powerful techniques. Samples were prepared by thermal evaporation under ultrahigh vacuum onto a Si(1 0 0) substrate. The morphology of these films and their interfaces was studied by a combination of scanning transmission electron microscopy, X-ray reflectivity, angle resolved X-ray photoelectron spectroscopy and hard X-ray photoelectron spectroscopy. The Si-on-Fe interface thickness and roughness were determined to be 1.4(1) nm and 0.6(1) nm, respectively. Moreover, determination of the stable phases formed at both Fe-on-Si and Si-on-Fe interfaces was performed using conversion electron Mössbauer spectroscopy on multilayers with well separated Si-on-Fe and Fe-on-Si interfaces. It is shown that while a fraction of Fe remains as α-Fe, the rest has reacted with Si, forming the paramagnetic c-Fe1−xSi phase and a ferromagnetic Fe rich silicide (DO3 type phase). We conclude that the paramagnetic c-Fe1−xSi silicide sublayer is identical in both Si-on-Fe and Fe-on-Si interfaces, whereas an asymmetry is revealed in the composition of the ferromagnetic silicide sublayer.
Versión del editorhttp://dx.doi.org/10.1016/j.jallcom.2014.12.019
URIhttp://hdl.handle.net/10261/121257
DOI10.1016/j.jallcom.2014.12.019
ISSN0925-8388
E-ISSN1873-4669
Aparece en las colecciones: (ICMM) Artículos
(ICMA) Artículos
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.