Experimental determination technique for magnetic anisotropy of individual nanowires

Title
Experimental determination technique for magnetic anisotropy of individual nanowires
Authors
문경웅이재철최석봉신경호
Keywords
Magnetic anisotropy; Ferromagnetic nanowires; Torque magnetometer; Anisotropic magnetoresistance
Issue Date
2009-02
Publisher
Current applied physics : the official journal of the Korean Physical Society
Citation
VOL 9, 1293-1295
Abstract
We present an experimental technique to determine the magnetic anisotropy of ferromagnetic nanowires. In the technique, the magnetization state is monitored by measuring the anisotropic magnetoresistance with rotating the external magnetic field. The measured magnetoresistance curves exhibit basically the same curves typically appeared in the torque magnetometric measurements, which are then readily analyzed based on the Stoner–Wohlfarth theory with a single fitting parameter – the magnetic anisotropy. By applying the present technique to Permalloy nanowires, it is shown that the shape anisotropy in real nanowires is significantly influenced by the edge roughness
URI
http://pubs.kist.re.kr/handle/201004/36366
ISSN
1567-1739
Appears in Collections:
KIST Publication > Article
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