Domain wall pinning by a stray field from NiFe on a Co/Ni nanowire

R. Hiramatsu, T. Koyama, H. Hata, T. Ono, D. Chiba, S. Fukami, N. Ishiwata

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We have investigated the influence of a stray field on a magnetic domain wall (DW). The depinning fields of a DW in a perpendicularly magnetized Co/Ni nanowire with partly-stacked Ni81Fe19/SiO2 islands on it was measured. The depinning field for the wire with Ni81Fe19/SiO2 was found to be higher than that for the wire without the stack, indicating that the stray field from the Ni81Fe19/SiO2 stack clearly served as an artificial pinning site for the DW. The magnetic force microscopy observation evidenced that the DW was pinned near the Ni81Fe19 stack.

Original languageEnglish
Pages (from-to)608-611
Number of pages4
JournalJournal of the Korean Physical Society
Volume63
Issue number3
DOIs
Publication statusPublished - 2013 Aug 1
Externally publishedYes

Keywords

  • Depinning
  • Domain wall
  • Magnetic wire
  • Pinning
  • Stray field

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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