Development of MFM with Magnetic Fields Applied by Orthogonal Electromagnets and its Applications to Analysis of Magnetic Domain Structures

Development of MFM with Magnetic Fields Applied by Orthogonal Electromagnets and its Applications to Analysis of Magnetic Domain Structures

We developed a magnetic force microscope (MFM) where magnetic fields were applied by orthogonal electromagnets. This equipment can be used to observe magnetic domains by specifying an arbitrary angle while applying an external magnetic field of 5 kOe or less. A dot and a rectangular thin film made o...

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Veröffentlicht in:Journal of the Magnetics Society of Japan 2009-05, Vol.33 (3), p.298-302
Hauptverfasser: Yamaoka, T., Hasumura, S., Andou, K., Tamura, M., Tsujikawa, H., Yamaguchi, A., Miyajima, H.
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container_end_page 302
container_issue 3
container_start_page 298
container_title Journal of the Magnetics Society of Japan
container_volume 33
creator Yamaoka, T.
Hasumura, S.
Andou, K.
Tamura, M.
Tsujikawa, H.
Yamaguchi, A.
Miyajima, H.
description We developed a magnetic force microscope (MFM) where magnetic fields were applied by orthogonal electromagnets. This equipment can be used to observe magnetic domains by specifying an arbitrary angle while applying an external magnetic field of 5 kOe or less. A dot and a rectangular thin film made of permalloy were measured with this equipment. The chirality of the vortex state in the permalloy dot could be determined by using this apparatus. Furthermore, the shape of the closure domain changed every time the direction of the magnetic field was changed by 45 degrees. These results are discussed in detail together with the micromagnetics simulations.
doi_str_mv 10.3379/msjmag.0903RF8095
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title Development of MFM with Magnetic Fields Applied by Orthogonal Electromagnets and its Applications to Analysis of Magnetic Domain Structures
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