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Applied Physics Letters / Volume 96 / Issue 9 / MAGNETISM AND SUPERCONDUCTIVITY

Appl. Phys. Lett. 96, 092508 (2010); http://dx.doi.org/10.1063/1.3330931 (3 pages)

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

Y. Z. Fang1,2, J. J. Zheng1, F. M. Wu1, Q. M. Xu2, J. Q. Zhang1, H. Q. Ye1, J. L. Zheng1, and T. Y. Li1

1College of Mathematics, Physics and Information Engineering, Zhejiang Normal University, Jinhua, 321004 Zhejiang, People’s Republic of China
2School of Material Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, People’s Republic of China

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(Received 2 December 2009; accepted 29 January 2010; published online 2 March 2010)

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.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

atomic force microscopy, copper compounds, ferromagnetic materials, giant magnetoresistance, internal stresses, iron compounds, magnetic anisotropy, magnetic annealing, nanostructured materials, niobium compounds, silicon compounds

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3330931

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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