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Current-induced oscillation of a magnetic domain wall: Effect of damping enhanced by magnetization dynamics
- Authors
- Kim, Sang-Il; Moon, Jung-Hwan; Kim, Woojin; Lee, Kyung-Jin
- Issue Date
- 1월-2011
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Spintronics; Spin motive force; Domain wall oscillation; Thiele' s equation; Micromagnetic simulation
- Citation
- CURRENT APPLIED PHYSICS, v.11, no.1, pp.61 - 64
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 11
- Number
- 1
- Start Page
- 61
- End Page
- 64
- ISSN
- 1567-1739
- Abstract
- Based on the Thiele's approach, we investigate current-induced oscillation of a magnetic domain wall. A special attention is paid to effect of damping enhancement due to magnetization dynamics in the limit of no spin diffusion. Unlike for a translation motion, the enhanced damping due to magnetization dynamics has an important role for a rotational motion of a magnetic domain wall and can significantly reduce its oscillation frequency. The frequency reduction becomes more substantial for a narrower domain wall. This result provides a design strategy of high-frequency devices utilizing domain wall oscillation. (C) 2010 Elsevier B.V. All rights reserved.
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