Determination of perpendicular magnetic anisotropy in ultrathin ferromagnetic films by extraordinary Hall voltage measurement

Title
Determination of perpendicular magnetic anisotropy in ultrathin ferromagnetic films by extraordinary Hall voltage measurement
Authors
Kyoung-Woong Moon이재철Sug-Bong Choe신경호
Keywords
perpendicular magnetic anisotropy; extraordinary Hall; angle-dependent Hall voltage; Stoner?ohlfarth theory
Issue Date
2009-11
Publisher
Review of scientific instruments
Citation
VOL 80, NO 11, 113094-1-113094-3
Abstract
A magnetometric technique for detecting the magnetic anisotropy field of ferromagnetic films is described. The technique is based on the extraordinary Hall voltage measurement with rotating the film under an external magnetic field. By analyzing the angle-dependent Hall voltage based on the Stoner–Wohlfarth theory, the magnetic anisotropy field is uniquely determined. The present technique is pertinent especially for ultrathin films with strong intrinsic signal, in contrast to the conventional magnetometric techniques of which the signal is in proportion to the sample volume and geometry.
URI
http://pubs.kist.re.kr/handle/201004/38284
ISSN
0034-6748
Appears in Collections:
KIST Publication > Article
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