Transport Characterization of the Magnetic Anisotropy of (Ga,Mn)As

Appl. Phys. Lett 90, 062109 (2007) The rich magnetic anisotropy of compressively strained (Ga,Mn)As has attracted great interest recently. Here we discuss a sensitive method to visualize and quantify the individual components of the magnetic anisotropy using transport. A set of high resolution trans...

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Bibliographic Details
Main Authors Pappert, K, Hümpfner, S, Wenisch, J, Brunner, K, Gould, C, Schmidt, G, Molenkamp, L. W
Format Journal Article
LanguageEnglish
Published 06.11.2006
Subjects
Physics - Mesoscale and Nanoscale Physics
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Summary:Appl. Phys. Lett 90, 062109 (2007) The rich magnetic anisotropy of compressively strained (Ga,Mn)As has attracted great interest recently. Here we discuss a sensitive method to visualize and quantify the individual components of the magnetic anisotropy using transport. A set of high resolution transport measurements is compiled into color coded resistance polar plots, which constitute a fingerprint of the symmetry components of the anisotropy. As a demonstration of the sensitivity of the method, we show that these typically reveal the presence of both the [-110] and the [010] uniaxial magnetic anisotropy component in (Ga,Mn)As layers, even when most other techniques reveal only one of these components.
DOI:10.48550/arxiv.cond-mat/0611156