ORBi: Fleury-Frenette Karl - Characteristics of the iron moment in Dy-Fe and Dy-FeCo amorphous alloys studied by X-ray magnetic circular dichroism

Reference : Characteristics of the iron moment in Dy-Fe and Dy-FeCo amorphous alloys studied by X-ra...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/76707

Title :	Characteristics of the iron moment in Dy-Fe and Dy-FeCo amorphous alloys studied by X-ray magnetic circular dichroism
Language :	English
Author, co-author :	Fleury-Frenette, Karl [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Dhesi, S. S. [> > > >]
	van der Laan, G. [> > > >]
	Strivay, David [Université de Liège - ULg > Département de physique > Physique nucléaire, atomique et spectroscopie - Centre européen en archéométrie >]
	Weber, Georges [Université de Liège - ULg > > Centre européen en archéométrie - Physique nucléaire, atomique et spectroscopie >]
	Delwiche, Jacques [Université de Liège - ULg > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Publication date :	2000
Journal title :	Journal of Magnetism & Magnetic Materials
Publisher :	Elsevier Science
Volume :	220
Issue/season :	1
Pages :	45-51
Audience :	International
ISSN :	0304-8853
City :	Amsterdam
Country :	The Netherlands
Keywords :	[en] thin films ; amorphous alloys ; xmcd ; synchrotron radiation ; magnetic properties ; magnetocrystalline anisotropy ; magnetooptical properties ; orbital magnetization ; microscopic origin ; thin-films ; fields ; probe ; spin ; ho ; co
Abstract :	[en] The local magnetic moment of Fe in Dy-Fe and Dy-FeCo amorphous alloys has been studied using X-ray absorption spectroscopy and X-ray magnetic circular dichroism (XMCD). The Fe orbital and spin magnetic moments have been obtained for a range of alloy compositions by applying the sum rules to the XMCD spectra. The room temperature variations of the average components of the Fe moments as a function of Dy concentration and with the substitution of Fe by Co have been determined. A sharp reversal of the total magnetic moment was found at 28 +/- 1 at% Dy for both alloys. (C) 2000 Elsevier Science B.V. All rights reserved.
Permalink :	http://hdl.handle.net/2268/76707

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