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Institut f. Physik FG Nanostrukturierte Materialien
Martin-Luther-Universitat Halle-Wittenberg
Von-Danckelmann-Platz 3, D-06120 Halle, Germany
Tel.: +49 345 55 25321
Fax.: +49 345 55 27034
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K. Pappert, S. Hümpfner, J. Wenisch, K. Brunner, C. Gould, G. Schmidt, L. W. Molenkamp Transport characterization of the magnetic anisotropy of (Ga,Mn)As Appl. Phys. Lett. 90 (2015-02-24 14:04:18), 062109
The rich magnetic anisotropy of compressively strained (Ga,Mn)As has attracted great interest recently. Here the authors 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, they show that these typically reveal the presence of both the and the [010] uniaxial magnetic anisotropy component in (Ga,Mn)As layers, even when most other techniques reveal only one of these components. http://scitation.aip.org/content/aip/journal/apl/90/6/10.1063/1.2437075 |
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