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Lee, Ki-Suk
Creative Lab. for Advanced Spin Systems (CLASS)
Research Interests
  • Magnetism, spintronics, spin dynamics, rare-earth free magnet

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Quantitative understanding of magnetic vortex oscillations driven by spin-polarized out-of-plane dc current: Analytical and micromagnetic numerical study

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Title
Quantitative understanding of magnetic vortex oscillations driven by spin-polarized out-of-plane dc current: Analytical and micromagnetic numerical study
Author
Choi, Youn-SeokLee, Ki-SukKim, Sang-Koog
Keywords
eigenvalues and eigenfunctions; micromagnetics; spin polarised transport; vortices
Issue Date
2009-05
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.79, no.18, pp.1 - 6
Abstract
We studied magnetic vortex oscillations associated with vortex gyrotropic motion driven by spin-polarized out-of-plane dc current by analytical and micromagnetic numerical calculations. Reliable controls of the tunable eigenfrequency and orbital amplitude of persistent vortex oscillations were demonstrated. This work provides an advanced step toward the practical application of vortex oscillations to persistent vortex oscillators in a wide frequency (f) range of 10-2000 MHz and with high values of f/Delta f.
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DOI
10.1103/PhysRevB.79.184424
ISSN
2469-9950
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MSE_Journal Papers
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