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Speed and stability of magnetic chiral motion in a chain of asymmetric thin nanodots
- Speed and stability of magnetic chiral motion in a chain of asymmetric thin nanodots
- Lee, Kyeong-Dong; Kim, Young Min; Song, Hyon-Seok; You, Chun-Yeol; Hong, Jung-Il; Park, Byong-Guk
- DGIST Authors
- Hong, Jung-Il
- Issue Date
- Applied Physics Express, 8(10)
- Article Type
- A-Stable; Chains; Critical Fields; High-Speed; In-Plane Anisotropy; Intermediate Level; Lower Critical Field; Magnetism; Magnetization; Magnetization Rotations; Nanodots; Stability
- 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.
- Institute of Physics Publishing
- Related Researcher
Hong, Jung Il
Quantum Electric & Magnetic Materials Laboratory
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- Emerging Materials ScienceQuantum Electric & Magnetic Materials Laboratory1. Journal Articles
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