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Quantitative investigation of the magnetic anisotropy in GaMnAs film by using Hall measurement
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2008 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 103, no 7Article in journal (Refereed) Published
Abstract [en]

We have performed a systematic Hall measurement on the GaMnAs ferromagnetic films. The angular dependences of the Hall effects were obtained by changing the magnetic field angle in two different crystal planes [i.e., (001) and (110)]. The in-plane and out-of-plane anisotropy fields were obtained by analyzing the angular dependence of planar Hall resistance and anomalous Hall resistance based on the magnetic free energy model. While the cubic anisotropy fields both for in-plane and out-of-plane showed strong temperature dependence, the uniaxial anisotropy fields were insensitive to the temperature. © 2008 American Institute of Physics.

Place, publisher, year, edition, pages
2008. Vol. 103, no 7
Keyword [en]
Hall effect, Magnetic anisotropy, Magnetic films, Measurement theory, Hall measurement, Hall resistance, Gallium alloys
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-105589DOI: 10.1063/1.2834448ISI: 000255043200723OAI: diva2:573526

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Available from: 2012-11-30 Created: 2012-11-22 Last updated: 2013-05-13Bibliographically approved

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