DocumentCode
847257
Title
Magnetic coupling in Fe60Sm40-Fe95Ta5N multilayers
Author
Butera, A. ; Weston, J.L. ; Barnard, J.A.
Volume
38
Issue
5
fYear
2002
fDate
9/1/2002 12:00:00 AM
Firstpage
2682
Lastpage
2684
Abstract
Three sets of exchange spring magnetic films and multilayers with different characteristics and well-defined uniaxial anisotropy have been studied by magnetization and ferromagnetic resonance (FMR) techniques. It was found that the exchange spring behavior is strongly influenced by the thickness of the individual layers. In FMR measurements, two or more modes can be observed. These modes are related only to the soft phase and the different resonance fields arise from the different anisotropy of the soft layers. It was also observed that the effective demagnetization field is larger in multilayers than in single films, suggesting the presence of an additional easy plane anisotropy.
Keywords
coercive force; demagnetisation; exchange interactions (electron); ferromagnetic materials; ferromagnetic resonance; iron alloys; magnetic hysteresis; magnetic multilayers; magnetostriction; perpendicular magnetic anisotropy; samarium alloys; soft magnetic materials; sputtered coatings; tantalum alloys; Fe60Sm40-Fe95Ta5N; coercivity; easy plane anisotropy; effective demagnetization field; exchange spring magnetic films; ferromagnetic resonance; giant magnetostrictive material; hard/soft multilayer films; hysteresis loops; magnetic coupling; magnetic multilayers; magnetization; microactuator materials; perpendicular anisotropy; soft phase; sputtered films; thickness dependence; uniaxial anisotropy; Anisotropic magnetoresistance; Couplings; Iron; Magnetic anisotropy; Magnetic films; Magnetic multilayers; Magnetic resonance; Magnetization; Perpendicular magnetic anisotropy; Springs;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2002.801985
Filename
1042315
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