論文

査読有り
2023年1月1日

Correlation between interlayer exchange coupling and domain wall velocity in multilayered magnetic wires

Journal of Magnetism and Magnetic Materials
  • Takafumi Suzuki
  • ,
  • Masaaki Tanaka
  • ,
  • Tatsuro Ohmasa
  • ,
  • Shunsuke Honda
  • ,
  • Syuta Honda
  • ,
  • Hiroyuki Awano
  • ,
  • Ko Mibu

565
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jmmm.2022.170218

The effect of interlayer exchange coupling (IEC) in {Tb/Co}4/Rh/{Co/Tb}4/Pt multilayered wires on the domain wall (DW) structure and DW velocity was investigated. It was found that the stability of the Néel-type DWs was enhanced and the velocity of the current-induced DW movement increased with an increase in the antiferromagnetic IEC strength. The micromagnetic simulation based on the Landau–Lifshitz equation clarifies that the direction of the magnetic moment in the DWs depends on the antiferromagnetic IEC strength, and the stability of the Néel-type DW increases with an increase in the antiferromagnetic IEC strength. As a consequence of this stability, the spin-orbital torque affects effectively on the magnetic moment of the DWs and the DW velocity increases. These results imply that the DW velocity in magnetic domain-based memories can be controlled by the antiferromagnetic IEC strength.

リンク情報
DOI
https://doi.org/10.1016/j.jmmm.2022.170218
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85143620638&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85143620638&origin=inward
ID情報
  • DOI : 10.1016/j.jmmm.2022.170218
  • ISSN : 0304-8853
  • SCOPUS ID : 85143620638

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