Rashba spinorbit coupling effects on a current-induced domain wall motion

Jisu Ryu, Soo Man Seo, Kyung Jin Lee, Hyun Woo Lee

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A current-induced domain wall motion in magnetic nanowires with a strong structural inversion asymmetry [I.M. Miron, T. Moore, H. Szambolics, L.D. Buda-Prejbeanu, S. Auffret, B. Rodmacq, S. Pizzini, J. Vogel, M. Bonfim, A. Schuhl, G. Gaudin, Nat. Mat. 10 (2011) 419] seems to have novel features such as the domain wall motion along the current direction or the delay of the onset of the Walker breakdown. In such a highly asymmetric system, the Rashba spinorbit coupling (RSOC) may affect a domain wall motion. We studied theoretically the RSOC effects on a domain wall motion and found that the RSOC, indeed, can induce the domain wall motion along the current direction in certain situations. It also delays the Walker breakdown and for a strong RSOC, the Walker breakdown does not occur at all. The RSOC effects are sensitive to the magnetic anisotropy of nanowires and also to the ratio between the Gilbert damping parameter α and the non-adiabaticity parameter β.

Original languageEnglish
Pages (from-to)1449-1452
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume324
Issue number7
DOIs
Publication statusPublished - 2012 Apr

Keywords

  • Domain wall motion
  • Spinorbit coupling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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