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Dissipative soliton dynamics in a discrete magnetic nano-dot chain

Title
Dissipative soliton dynamics in a discrete magnetic nano-dot chain
Authors
Lee, KD[Lee, Kyeong-Dong]You, CY[You, Chun-Yeol]Song, HS[Song, Hyon-Seok]Park, BG[Park, Byong-Guk]Shin, SC[Shin, Sung-Chul]
DGIST Authors
Song, HS[Song, Hyon-Seok]; Shin, SC[Shin, Sung-Chul]
Issue Date
2014-02-03
Citation
Applied Physics Letters, 104(5)
Type
Article
Article Type
Article
Keywords
Analytic ModelingChainsCharacteristic FrequenciesDissipative SolitonsDissipative SystemsLocalization LengthMicromagnetic SimulationsSoliton DynamicsSolitonsThreshold Velocity
ISSN
0003-6951
Abstract
Soliton dynamics is studied in a discrete magnetic nano-dot chain by means of micromagnetic simulations together with an analytic model equation. A soliton under a dissipative system is driven by an applied field. The field-driven dissipative soliton enhances its mobility nonlinearly, as the characteristic frequency and the intrinsic Gilbert damping decrease. During the propagation, the soliton emits spin waves which act as an extrinsic damping channel. The characteristic frequency, the maximum velocity, and the localization length of the soliton are found to be proportional to the threshold field, the threshold velocity, and the initial mobility, respectively. © 2014 AIP Publishing LLC.
URI
http://hdl.handle.net/20.500.11750/3118
DOI
10.1063/1.4864361
Publisher
American Institute of Physics Publishing
Files:
There are no files associated with this item.
Collection:
Emerging Materials ScienceETC1. Journal Articles
Emerging Materials ScienceETC1. Journal Articles


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