The wall coercivity of soft magnetic films

The coercivity of soft magnetic films was intensively investigated some decades ago. Recently the coercive force in soft magnetic materials has been discussed again. In the present discussions the previous theoretical and experimental results are usually neglected. In this paper it is demonstrated t...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 1993-12, Vol.128 (3), p.395-400
Main Authors: Hoffmann, Horst, Fujii, Toshitaka
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain effects, magnetization curves, and hysteresis
Exact sciences and technology
Magnetic properties and materials
Magnetization curves, hysteresis, Barkhausen and related effects
Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects
Metals. Metallurgy
Physics
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Summary:The coercivity of soft magnetic films was intensively investigated some decades ago. Recently the coercive force in soft magnetic materials has been discussed again. In the present discussions the previous theoretical and experimental results are usually neglected. In this paper it is demonstrated that in polycrystalline uniaxial soft magnetic films the wall coercive force is expressed as HW α S√D4√Ku/MS, where S is the ripple parameter, D the mean diameter of the crystal lites, and Ku the uniaxial anisotropy constant.
ISSN:0304-8853
DOI:10.1016/0304-8853(93)90488-N