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

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

Bibliographical note

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

Keywords

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

ASJC Scopus subject areas

General Materials Science
General Physics and Astronomy

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10.1016/j.cap.2010.06.019

Cite this

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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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doi = "10.1016/j.cap.2010.06.019",

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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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DO - 10.1016/j.cap.2010.06.019

M3 - Article

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SN - 1567-1739

VL - 11

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

Bibliographical note

Keywords

ASJC Scopus subject areas

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