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Suppression of the precessional motion of magnetization in a nanostructured synthetic ferrimagnet

Authors
Lee, Jong MinLim, Sang Ho
Issue Date
28-5월-2012
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.100, no.22
Indexed
SCIE
SCOPUS
Journal Title
APPLIED PHYSICS LETTERS
Volume
100
Number
22
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/108392
DOI
10.1063/1.4724209
ISSN
0003-6951
Abstract
The suppression of the precessional oscillation of magnetization is investigated in a nanostructured synthetic ferrimagnet. Both the duration and magnitude of an applied magnetic field pulse play an important role in suppressing the precessional motion. This is in contrast to a single magnetic layer, where efficient suppression can be done by controlling the pulse duration only. The reason for this is that the precessional motion of the two magnetizations in the synthetic ferrimagnet is strongly coupled and, at the conditions of current interest, the coupled precessional motion occurs in the optic mode, where the two magnetizations oscillate in opposite directions. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4724209]
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공과대학 (신소재공학부)
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