Observations of single magnetic domain wall in nanomagnet by magnetic force microscopy

Takehiro Yamaoka; Kazutoshi Watanabe; Yoshiharu Shirakawabe; Kazuo Chinone; Eiji Saitoh; Hideki Miyajima

doi:10.1143/JJAP.45.2230

Observations of single magnetic domain wall in nanomagnet by magnetic force microscopy

Takehiro Yamaoka, Kazutoshi Watanabe, Yoshiharu Shirakawabe, Kazuo Chinone, Eiji Saitoh, Hideki Miyajima

Advanced Institute for Materials Research (AIMR)

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Magnetic force microscopy (MFM) with a low moment probe and Q-control in a vacuum was applied to a permalloy semicircular wire loop with a single magnetic domain wall (DW). We successfully observed a nearly free single DW in such a nanomagnet, which is easy to move even using weak magnetic fields. In the case of MFM measurement with a high moment probe, the effects of the probe's stray field caused "DW manipulation," and the MFM signal was maximized just above the wire. When using the low moment probe, the MFM signal was maximized at the side of the wire, which concurs with the result of micromagnetic simulation.

Original language	English
Pages (from-to)	2230-2233
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	45
Issue number	3 B
DOIs	https://doi.org/10.1143/JJAP.45.2230
Publication status	Published - 2006 Mar 27

Keywords

DW manipulation
High moment probe
Low moment probe
Magnetic force microscopy
Micromagnetic simulation
Q factor
Single magnetic domain wall (DW)

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Observations of single magnetic domain wall in nanomagnet by magnetic force microscopy. / Yamaoka, Takehiro; Watanabe, Kazutoshi; Shirakawabe, Yoshiharu; Chinone, Kazuo; Saitoh, Eiji; Miyajima, Hideki.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 3 B, 27.03.2006, p. 2230-2233.

Research output: Contribution to journal › Article › peer-review

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Observations of single magnetic domain wall in nanomagnet by magnetic force microscopy

Abstract

Keywords

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