DocumentCode
972316
Title
The nucleation of domains in permalloy using low intensity ultrasound
Author
Collings, N.
Author_Institution
University of Vermont, Burlington, Vermont
Volume
15
Issue
6
fYear
1979
fDate
11/1/1979 12:00:00 AM
Firstpage
1842
Lastpage
1844
Abstract
Polycrystalline films of 60-40 NiFe prepared under specified conditions exhibit a behaviour which is at present being explored for possible applications in medical ultrasound diagnostic systems. The magnetization in a chosen area of the film can be switched by exposure to ultrasound. This switching proceeds via the nucleation of domains of ´reverse´ magnetization. These nucleation centers have not yet been identified in terms of a physical model and it is the aim of this paper to go some way in this direction.
Keywords
Acoustic radiation effects; Magnetic domains; Magnetic film switching; Magnetoelasticity; Permalloy films/devices; Anisotropic magnetoresistance; Annealing; Magnetic films; Magnetic hysteresis; Magnetic switching; Magnetization; Magnetostriction; Stress; Structural rings; Ultrasonic imaging;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1979.1060381
Filename
1060381
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