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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
Author(s)
Lee, Kyeong-DongKim, Young MinSong, Hyon-SeokYou, Chun-YeolHong, Jung-IlPark, Byong-Guk
Issued Date
2015-10
Citation
Applied Physics Express, v.8, no.10
Type
Article
Keywords
A-StableANISOTROPYChainsCritical FieldsDYNAMICSFIELDHigh SpeedIn-Plane AnisotropyIntermediate LevelLOGICLower Critical FieldMagnetismMagnetizationMagnetization RotationsMemORYNANODOTSNANOMAGNETSQUANTUM CELLULAR-AUTOMATASolitonsSTABILITY
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
  • 홍정일 Hong, Jung-Il
  • Research Interests Electric and Magnetic Properties of Nanostructured Materials; Spintronics
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Appears in Collections:
Department of Physics and Chemistry Spin Nanotech Laboratory 1. Journal Articles

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