TITLE

Mesostructural origin of stress-induced magnetic anisotropy in Fe-based nanocrystalline ribbons

AUTHOR(S)
Fang, Y. Z.; Zheng, J. J.; Wu, F. M.; Xu, Q. M.; Zhang, J. Q.; Ye, H. Q.; Zheng, J. L.; Li, T. Y.
PUB. DATE
March 2010
SOURCE
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p092508
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The cross-sectional mesostructure of a stress-annealed Fe-based (Fe73.5Cu1Nb3Si13.5B9) ribbon (SAR) has been investigated by atomic force microscopy. The magnetic anisotropy field was measured via the curves of the giant magnetoimpedence effect in SAR. The stress-induced magnetic anisotropy field (ΔHk) showed a linear correlation with the transverse congregating vector Kv of the agglomerated grains. This indicated that the ΔHk originated from the directional congregation of the agglomerated grains formed in SAR. A model for this directional congregation has been established. The previous diverse viewpoints on the mechanism of stress-induced magnetic anisotropy have been unified in this model.
ACCESSION #
48428997

 

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