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Effects of external field on the dynamic magnetization switching of a nanostructured exchange-coupled trilayer

Authors
Kim, K. S.Lee, K. J.Lima, S. H.
Issue Date
15-9월-2008
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.93, no.11
Indexed
SCIE
SCOPUS
Journal Title
APPLIED PHYSICS LETTERS
Volume
93
Number
11
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/122705
DOI
10.1063/1.2983653
ISSN
0003-6951
Abstract
The dynamic magnetization switching of a nanostructured exchange-coupled trilayer with a small thickness asymmetry is investigated by micromagnetic simulation. The magnetization switching initially occurs by coherent rotation, followed by magnetization oscillation. The switching time, which is about 9 ns at an applied field just above the switching field, is a factor of two longer than that observed for a single-layered thin film. A Fourier analysis of the magnetization oscillation shows multiple oscillation frequencies, the main frequency of which decreases as the applied magnetic field increases. (C) 2008 American Institute of Physics.
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공과대학 (신소재공학부)
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