Ferrimagnetic domain wall motion induced by damping-like spin-orbit torque

Se Hyeok Oh, Kyung Jin Lee

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We theoretically and numerically investigate ferrimagnetic domain wall motion driven by damping-like spin-orbit torque. We find that the damping-like spin-orbit torque combined with the interfacial Dzyaloshinskii-Moriya interaction efficiently drives the ferrimagnetic domain wall especially at the angular momentum compensation point. We obtain the analytic expression of the domain wall velocity with respect to the current density and the net spin density, which is in agreement with numerical simulation. The analytic expression is applicable to arbitrary compensation conditions, ranging from the ferromagnetic limit to the antiferromag-netic limit, and is thus useful to design and interpret ferrimagnetic domain wall experiments at various temperatures or compositions.

Original languageEnglish
Pages (from-to)196-200
Number of pages5
JournalJournal of Magnetics
Issue number2
Publication statusPublished - 2018

Bibliographical note

Funding Information:
We acknowledge S.-K. Kim for fruitful discussions. This work is supported by the National Research Foundation of Korea (NRF) (Grants No. 2015M3D1A1070465 and No. 2017R1A2B2006119) and the KIST Institutional Program (Project No. 2V05750).

Publisher Copyright:
© The Korean Magnetics Society. All rights reserved.


  • Angular momentum compensation
  • Dzyaloshinskii-moriya interaction
  • Ferrimagnetic domain wall
  • Spin-orbit torque

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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