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Magneto-resistance of NiFe nanowire with zigzag shape

The anisotropic magneto-resistance (AMR) contributions of a zigzag-shaped NiFe wire were investigated. The magneto-resistance (MR) behaviors in different magnetic-field directions clearly reflect the angular relationships between the directions of the current and magnetic moment in the subdivisions....

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Published in:Journal of magnetism and magnetic materials 2009-08, Vol.321 (15), p.2327-2330
Main Authors: Manago, Takashi, Kanazawa, Kazuya, Kera, Tatsuya
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description The anisotropic magneto-resistance (AMR) contributions of a zigzag-shaped NiFe wire were investigated. The magneto-resistance (MR) behaviors in different magnetic-field directions clearly reflect the angular relationships between the directions of the current and magnetic moment in the subdivisions. The resistance in remanence after magnetization along 0° in respect to the longer direction of zigzag was larger than that along 90°. Assumed that the difference appears due to the AMR contribution in the domain wall trapped at the corner, the MR ratio was estimated to be 1.2%, which is in good agreement with the AMR of the NiFe film. We clearly showed that the domain-wall resistance originates in the AMR.
doi_str_mv 10.1016/j.jmmm.2009.02.048
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subjects Anisotropic magneto-resistance
Anisotropy
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain-wall resistance
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in multilayers, nanoscale materials and structures
Exact sciences and technology
Intermetallics
Iron compounds
Magnetization
Micromagnetic simulation
Nanostructure
Nanowires
Nickel base alloys
Nickel compounds
NiFe
Physics
Quantum wires
Subdivisions
Wire
title Magneto-resistance of NiFe nanowire with zigzag shape
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