Current-induced oscillation of a magnetic domain wall: Effect of damping enhanced by magnetization dynamics

Sang Il Kim; Jung Hwan Moon; Woojin Kim; Kyung Jin Lee

doi:10.1016/j.cap.2010.06.019

Current-induced oscillation of a magnetic domain wall: Effect of damping enhanced by magnetization dynamics

Sang Il Kim, Jung Hwan Moon, Woojin Kim, Kyung Jin Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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.

Original language	English
Pages (from-to)	61-64
Number of pages	4
Journal	Current Applied Physics
Volume	11
Issue number	1
DOIs	https://doi.org/10.1016/j.cap.2010.06.019
Publication status	Published - 2011 Jan

Keywords

Domain wall oscillation
Micromagnetic simulation
Spin motive force
Spintronics
Thiele's equation

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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10.1016/j.cap.2010.06.019

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title = "Current-induced oscillation of a magnetic domain wall: Effect of damping enhanced by magnetization dynamics",

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.",

keywords = "Domain wall oscillation, Micromagnetic simulation, Spin motive force, Spintronics, Thiele's equation",

author = "Kim, {Sang Il} and Moon, {Jung Hwan} and Woojin Kim and Lee, {Kyung Jin}",

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T2 - Effect of damping enhanced by magnetization dynamics

AU - Kim, Sang Il

AU - Moon, Jung Hwan

AU - Kim, Woojin

AU - Lee, Kyung Jin

N1 - Funding Information: This study was supported by the Korea University grant.

PY - 2011/1

Y1 - 2011/1

N2 - 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.

AB - 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.

KW - Domain wall oscillation

KW - Micromagnetic simulation

KW - Spin motive force

KW - Spintronics

KW - Thiele's equation

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M3 - Article

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SN - 1567-1739

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SP - 61

EP - 64

JO - Current Applied Physics

JF - Current Applied Physics

IS - 1

ER -

Current-induced oscillation of a magnetic domain wall: Effect of damping enhanced by magnetization dynamics

Abstract

Keywords

ASJC Scopus subject areas

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