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Speed and stability of magnetic chiral motion in a chain of asymmetric thin nanodots

Title
Speed and stability of magnetic chiral motion in a chain of asymmetric thin nanodots
Authors
Lee, Kyeong-DongKim, Young MinSong, Hyon-SeokYou, Chun-YeolHong, Jung-IlPark, Byong-Guk
DGIST Authors
Hong, Jung-Il
Issue Date
2015-10
Citation
Applied Physics Express, 8(10)
Type
Article
Article Type
Article
Keywords
A-StableChainsCritical FieldsHigh-SpeedIn-Plane AnisotropyIntermediate LevelLower Critical FieldMagnetismMagnetizationMagnetization RotationsNanodotsStability
ISSN
1882-0778
Abstract
The speed and stability of magnetic chiral motion are numerically investigated in a chain of asymmetric thin nanodots. The chirality of the magnetization rotation in an asymmetric nanodot plays a significant role in the velocity at low critical field, and there exists a stable operating magnetic field at the intermediate level, irrespective of the arrangement of asymmetric nanodots. Additionally, with induced in-plane anisotropy, we find that the chiral motion yields more stability with a lower critical field at room temperature. We ascribe the shift of the energy barrier as a major contribution to the thermal stability, high speed, and low critical field of chiral motion. © 2015 The Japan Society of Applied Physics.
URI
http://hdl.handle.net/20.500.11750/5166
DOI
10.7567/APEX.8.103003
Publisher
Institute of Physics Publishing
Related Researcher
  • Author Hong, Jung Il Quantum Electric & Magnetic Materials Laboratory
  • Research Interests Electric and Magnetic Properties of Nanostructured Materials; Spintronics
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials ScienceQuantum Electric & Magnetic Materials Laboratory1. Journal Articles


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