DocumentCode
953489
Title
Magnetization switching in a garnet thin film
Author
White, James M. ; Powell, Carl G. ; Lynch, George W.
Author_Institution
IBM Thomas J. Watson Research Center, Yorktown Heights, N.Y.
Volume
11
Issue
1
fYear
1975
fDate
1/1/1975 12:00:00 AM
Firstpage
12
Lastpage
15
Abstract
An improved technique for observing subnanosecond magnetization changes in thin films has been used to study the underdamped oscillatory behavior in a (Y2.5 Gd0.5 ) (Fe4 Ga1 )O12 sample. The measurement setup uses a version of the alternate sampling technique in which the sensitivity has been upgraded by the use of a lock-in amplifier. By using a shorted stripline of appropriate length to apply to the film two properly timed magnetic field steps, the precession of the magnetization can be quelled, and the magnetization can be switched between initial and final directions in a half-cycle of the resonant frequency.
Keywords
Garnet films/devices; Magnetic film switching; Magnetic measurements; Amplifiers; Garnet films; Iron; Magnetic field measurement; Magnetic films; Magnetic switching; Magnetization; Resonant frequency; Sampling methods; Stripline;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1975.1058547
Filename
1058547
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