TITLE

Magnetization reversal measurements in Gd/Fe multilayer antidot arrays by vector magnetometry using x-ray magnetic circular dichroism

AUTHOR(S)
Lee, D. R.; Choi, Y.; You, C.-Y.; Lang, J. C.; Haskel, D.; Srajer, G.; Metlushko, V.; Ilic, B.; Bader, S. D.
PUB. DATE
December 2002
SOURCE
Applied Physics Letters;12/23/2002, Vol. 81 Issue 26, p4997
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Fe K-edge x-ray magnetic circular dichroism (XMCD) was used as vector magnetometry to measure the magnetization rotation while field cycling Gd/Fe multilayer antidot arrays through a hysteresis loop. The measured XMCD hysteresis curves were then compared quantitatively with micromagnetic calculations to reconstruct the microscopic magnetization configurations. The best fit reveals the existence of three types of characteristic domains: two that rotate coherently during magnetization reversal and one that is strongly pinned. The behavior is explained by a simple three-domain energy model, including a phenomenological ansatz for a shape-induced demagnetization energy contribution.
ACCESSION #
8691537

 

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