Magnetic force microscopy observation of antivortex core with perpendicular magnetization in patterned thin film of permalloy

Magnetic force microscopy observation of antivortex core with perpendicular magnetization in patterned thin film of permalloy

The cross-tie wall is a kind of magnetic domain wall composed of a main straight wall and crossing subwalls and observed in magnetic thin films. This wall contains two kinds of magnetic vortex structures: “circular vortex” and “antivortex.” At the cores of both vortices, the existence of a spot with...

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Veröffentlicht in:Applied physics letters 2002-06, Vol.80 (22), p.4190-4192
Hauptverfasser: Shigeto, K., Okuno, T., Mibu, K., Shinjo, T., Ono, T.
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container_end_page 4192
container_issue 22
container_start_page 4190
container_title Applied physics letters
container_volume 80
creator Shigeto, K.
Okuno, T.
Mibu, K.
Shinjo, T.
Ono, T.
description The cross-tie wall is a kind of magnetic domain wall composed of a main straight wall and crossing subwalls and observed in magnetic thin films. This wall contains two kinds of magnetic vortex structures: “circular vortex” and “antivortex.” At the cores of both vortices, the existence of a spot with perpendicular magnetization has been theoretically predicted. We have detected the perpendicular magnetization spots at each vortex core and identified the direction of it by applying magnetic force microscopy imaging to cross-tie walls in patterned rectangular thin permalloy (Ni80Fe20) films. We also fabricated magnetic structures that contain only antivortex by engineering the shape of thin films.
doi_str_mv 10.1063/1.1483386
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title Magnetic force microscopy observation of antivortex core with perpendicular magnetization in patterned thin film of permalloy
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