XAS and XMCD studies of amorphous FeCo-based ribbons

Title
XAS and XMCD studies of amorphous FeCo-based ribbons
Authors
가우탐S. N. KaneB. G. ParkJ. Y. KimL. K. Varga송종한채근화
Keywords
FeCo-based alloy; Amorphous ribbons; X-ray absorption spectroscopy; X-ray magnetic circular dichroism
Issue Date
2011-06
Publisher
Journal of non-crystalline solids
Citation
VOL 357, NO 11-13, 2228-2231
Abstract
This paper reports x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) studies at Fe L3,2 and Co L3,2-edges to investigate the electronic structure of (Fe100&#8722;xCox)78Si9Nb3B9Cu1 (0<x<95) alloys. The influence of controlled Co addition on electronic structural and magnetic properties of (Fe100&#8722;xCox)78Si9Nb3B9Cu1 (x=0, 20, 40, and 60) alloys has been investigated and it has been observed that Co exists as Co2+/Co3+, while Fe exists as a mixture of Fe0 (metallic) and Fe2+. The XMCD studies confirm these results and reveal that Co-ions are responsible for the room temperature ferromagnetism (RTFM) in the system, while at Fe L3,2-edge it shows a diamagnetic behavior.
URI
http://pubs.kist.re.kr/handle/201004/41790
ISSN
0022-3093
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