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 journalArticlepeer-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 languageEnglish
Pages (from-to)61-64
Number of pages4
JournalCurrent Applied Physics
Volume11
Issue number1
DOIs
Publication statusPublished - 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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