Control of magnetic domains in Co/Pd multilayered nanowires with perpendicular magnetic anisotropy

Su Jung Noh, Yasuyoshi Miyamoto, Mitsunobu Okuda, Naoto Hayashi, Young-geun Kim

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Magnetic domain wall (DW) motion induced by spin transfer torque in magnetic nanowires is of emerging technological interest for its possible applications in spintronic memory or logic devices. Co/Pd multilayered magnetic nanowires with perpendicular magnetic anisotropy were fabricated on the surfaces of Si wafers by ion-beam sputtering. The nanowires had different sized widths and pinning sites formed by an anodic oxidation method via scanning probe microscopy (SPM) with an MFM tip. The magnetic domain structure was changed by an anodic oxidation method. To discover the current-induced DW motion in the Co/Pd nanowires, we employed micromagnetic modeling based on the Landau.Lifschitz.Gilbert (LLG) equation. The split DW motions and configurations due to the edge effects of pinning site and nanowire appeared.

Original languageEnglish
Pages (from-to)428-432
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number1
DOIs
Publication statusPublished - 2012 Jun 4

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Keywords

  • Domain wall
  • Magnetic nanowire
  • Perpendicular magnetic anisotropy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

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