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.
Strivay, David ; Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie - Centre européen en archéométrie
Weber, Georges ; Université de Liège - ULiège > Centre européen en archéométrie - Physique nucléaire, atomique et spectroscopie
Delwiche, Jacques ; Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Language :
English
Title :
Characteristics of the iron moment in Dy-Fe and Dy-FeCo amorphous alloys studied by X-ray magnetic circular dichroism
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