Micromagnetic Analysis of Current-Induced Domain Wall Motion in a Magnetic Nanowire with Low-Saturation Magnetization and Perpendicular Magnetic Anisotropy

• Takahashi K.

  Ibaraki University

• Ooba A.

  Ibaraki University

• Murakami H.

  Ibaraki University

• Komine T.

  Ibaraki University

• Sugita R.

  Ibaraki University

Bibliographic Information

Other Title

• 低飽和磁化垂直磁気異方性細線における電流誘起磁壁移動のマイクロマグネティックシミュレーション
• テイホウワ ジカ スイチョク ジキ イホウセイサイセン ニ オケル デンリュウ ユウキ ジヘキ イドウ ノ マイクロマグネティックシミュレーション

Abstract

  The dependence of saturation magnetization and uniaxial anisotropy constant on current-induced domain wall motion in a magnetic nanowire with perpendicular magnetic anisotropy was analyzed through micromagnetic simulation. The results indicated that the critical current density linearly decreased by reducing the saturation magnetization. Even if the domain wall width was changed by the uniaxial anisotropy constant, the domain wall width did not influence the critical current density since the increase in the domain wall width anisotropy constant caused an increase in the effective wall anisotropy. It was revealed that the decrease in the saturation magnetization was the dominant factor in reducing the critical current density.

Journal

• Journal of the Magnetics Society of Japan

  Journal of the Magnetics Society of Japan 35 (4), 366-369, 2011

  The Magnetics Society of Japan

Keywords

• current-induced domain wall motion
• saturation magnetization
• uniaxial anisotropy constant
• critical current density

Details

• CRID: 1390001205287758464
• NII Article ID: 130000881878
• NII Book ID: AA12297999
• DOI: 10.3379/msjmag.1106r007
• ISSN: 18822932
• ISSN: 18822924
• NDL BIB ID: 11169942
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11169942
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed