Oscillatory domain wall velocity of current-induced domain wall motion

W. J. Kim, S. M. Seo, T. D. Lee, Kyoung Jin Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We studied the effect of Oersted field (HOe) on current-induced domain wall motion (CIDWM) in magnetic nanowires. We found that HOe generates spin waves. Because of interaction between domain wall (DW) and spin wave, time-dependent wall velocity is oscillatory at the early stage of wall motion. The period of the oscillatory DW motion is in antiphase with the period of out-of-plane (OOP) magnetization oscillation inside the DW. The oscillatory wall velocity is suppressed as the thickness of nanowire decreases because of strong demagnetization field.

Original languageEnglish
Pages (from-to)2032-2034
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar 1

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Keywords

  • Domain wall motion
  • Oersted field
  • Spin wave
  • Spin-transfer torque

ASJC Scopus subject areas

  • Condensed Matter Physics

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