Trapping of Magnetic Domain Wall in Nickel Constriction
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概要
- 論文の詳細を見る
The trapping of a magnetic domain wall in a Ni constriction has been observed using magnetic field sweeping-magnetic force microscopy (MFS-MFM). The Ni constriction is composed of wide and narrow tapered parts connected to each other by a constricted area with a 60 nm width. When the MFS-MFM signal, which is sensitive to the perpendicular component of a stray field, is measured around the constricted area, the signal increases at approximately $-25$ Oe, and is almost constant between approximately $-45$ and $-125$ Oe during an applied field swept from 500 to $-500$ Oe. The constant signal between approximately $-45$ and $-125$ Oe is thought to be caused by domain wall trapping around the constricted area. The width of the domain wall has been estimated to be about 260 nm around the constricted area. It is also confirmed that the domain wall spreads more toward the narrow tapered part than the wide tapered part.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-07-15
著者
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Shiratsuchi Yu
Department Of Materials Science And Engineering Graduate School Of Engineering Osaka University
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Kawamura Yoshio
Department Of Material Science And Engineering Osaka University
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Endo Yasushi
Department Of Applied Biological Chemistry Faculty Of Agriculture Tohoku University
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Takahashi Akira
Advanced Technology Research Laboratories Corporate R&d Group Sharp Corporation
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Nakatani Ryoichi
Department Of Materials Science And Engineering & Frontier Research Center Graduate School Of En
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Yamamoto Masahiko
Department Of Biofunctional Chemistry Graduate School Of Natural Science And Technology Okayama Univ
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Sato Junichi
Department Of Agricultural Chemistry Meiji University
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Nakatani Ryoichi
Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Murakami Yoshiteru
Advanced Technology Research Laboratories, Corporate R&D Group, SHARP Corporation, 2613-1 Ichinomoto-cho, Tenri, Nara 632-8567, Japan
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Sato Junichi
Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Kawamura Yoshio
Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Endo Yasushi
Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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