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Browse Journals & Magazines > Magnetics, IEEE Transactions ...> Volume:24 Issue:6 Help

Influence of local anisotropy fluctuation on soft magnetic properties of the sputtered Fe-Si-Al alloy films

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5 Author(s)
Takahashi, M. ; Dept. of Electron. Eng., Tohoku Univ., Sendai, Japan ; Kato, N. ; Shimatsu, T. ; Shoji, H.
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Effective permeability, μeff, uniaxial anisotropy field, Hk, and local anisotropy fluctuation represented as magnetic ripple, SA-5/8 (S is the structure constant and A-5/8 is a coefficient equal to the power of the exchanges stiffness constant), were systematically studied as a function of composition and film thickness for Fe-Si-Al ternary alloy films. The influence of Hk and SA-5/8 on μeff is discussed in connection with the film structure. The magnitude of μeff was found to depend strongly on the magnitude of microscopic local anisotropy fluctuation. A decrease of the film thickness caused a marked increment in SA-5/8 due to the change of the preferred grain orientation from (110) to (110)+(100) texture. To realize high μeff for Fe-Si-Al films in the high-frequency region, it is concluded that a homogeneous preferred grain orientation is important

Published in:
Magnetics, IEEE Transactions on  (Volume:24 ,  Issue: 6 )

Date of Publication: Nov 1988

Page(s):
3084 - 3086
ISSN :
0018-9464
INSPEC Accession Number:
3376010
Digital Object Identifier :
10.1109/20.92342
Product Type:
Journals & Magazines
Date of Current Version :
06 August 2002
Issue Date :
Nov 1988
Sponsored by :
IEEE Magnetics Society

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