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

doi:10.3938/jkps.63.608

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 journal › Article

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 language	English
Pages (from-to)	608-611
Number of pages	4
Journal	Journal of the Korean Physical Society
Volume	63
Issue number	3
DOIs	https://doi.org/10.3938/jkps.63.608
Publication status	Published - 2013 Aug 1
Externally published	Yes

Keywords

Depinning
Domain wall
Magnetic wire
Pinning
Stray field

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.3938/jkps.63.608

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Hiramatsu, R., Koyama, T., Hata, H., Ono, T., Chiba, D., Fukami, S., & Ishiwata, N. (2013). Domain wall pinning by a stray field from NiFe on a Co/Ni nanowire. Journal of the Korean Physical Society, 63(3), 608-611. https://doi.org/10.3938/jkps.63.608

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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.",

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AU - Hiramatsu, R.

AU - Koyama, T.

AU - Hata, H.

AU - Ono, T.

AU - Chiba, D.

AU - Fukami, S.

AU - Ishiwata, N.

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AB - 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.

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