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Magnetic Linear Dichroism Studies of the 3p Core Level in Fe-based Alloy Films on W(110)

Authors
Lee, Hangil
Issue Date
Aug-2009
Publisher
KOREAN PHYSICAL SOC
Keywords
XMLD; Fe-based alloy films; W-MLD; A(MLD); Antiferromagnetic coupling
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.55, no.2, pp 604 - 608
Pages
5
Journal Title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
Volume
55
Number
2
Start Page
604
End Page
608
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/13713
DOI
10.3938/jkps.55.604
ISSN
0374-4884
1976-8524
Abstract
We used X-ray magnetic linear dichroism to investigate the correlation between variations in the magnetic properties and structural changes in Fe-based alloy films grown on a W(110) surface. Three systems were analyzed: Fe1-xNix, Fe1-xCox, and Fe1-xVx. By examining values of the W-MLD (the peak-to-peak asymmetry width) and the A(MLD) (peak-to-peak asymmetry amplitude) between the m(j) = +3/2 and -3/2 orbitals of core electronic states obtained from the spectral analysis, we validated that the local magnetic moment is not related to structural changes in these system,; and that the surface magnetic moment depends on the crystallographic anisotropy. Moreover, we confirmed that the collapse of the magnetic moment for Fe1-xVx originates from antiferromagnetic coupling between the local magnetic moment of the V atoms and that of the Fe atoms.
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