NDLI: An optical method to study the domain wall dynamic instability in amorphous ribbons

Content Provider	IEEE Xplore Digital Library
Author	Beatrice, C. Mazzetti, P. Vinai, F.
Copyright Year	1965
Abstract	An original method for the determination of the surface energy gamma /sub 0/ of a Bloch wall in a ferromagnetic specimen characterized by an antiparallel domain structure is described. It is based on the fact that, when the wall is oscillating with an increasing amplitude under the action of an external field, a critical amplitude is reached above which the wall becomes unstable and wall multiplication takes place. For a given frequency, the critical amplitude depends on the value of gamma /sub 0/. The mathematical procedure for determining the relation between the critical oscillation amplitude and gamma /sub 0/ is described and tested on a set of experimental results obtained on a specimen of Metglas 2605 SC. The wall oscillation amplitude is measured by means of an optical setup.<>
Sponsorship	IEEE Magnetics Society
Starting Page	1412
Ending Page	1414
Page Count	3
File Size	342627
File Format	PDF
ISSN	00189464
Volume Number	26
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Amorphous materials Magnetic field measurement Frequency Magnetic domain walls Permeability measurement Displacement measurement Optical surface waves Amorphous magnetic materials Demagnetization Velocity measurement
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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