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http://dx.doi.org/10.4283/JKMS.2008.18.4.127

Derivation and Numerical Verification of Harmonic Oscillatory Description of Ferromagnetic Vortex Motion  

Kim, Jun-Yeon (Department of Physics and Astronomy, Seoul National University)
Choe, Sug-Bong (Department of Physics and Astronomy, Seoul National University)
Publication Information
Journal of the Korean Magnetics Society / v.18, no.4, 2008 , pp. 127-130 More about this Journal
Abstract
We report a theoretical description of ferromagnetic vortex motion in sub-micrometer size magnetic thin film. Based on Thiele's equation combined with later theoretical achievements, we derive the analytic description of dynamics of ferromagnetic vortex core as a damped harmonic oscillatory motion. Consequently, the relations about frequency and damping constant in damped harmonic oscillation are presented. The validity of the results is verified through micromagnetic simulation.
Keywords
ferromagnetic vortex; vortex dynamics; harmonic oscillation; micromagnetic simulation;
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Times Cited By KSCI : 1  (Citation Analysis)
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