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Spin-orbit coupling effect in (Ga,Mn)As films: Anisotropic exchange interactions and magnetocrystalline anisotropy

URN to cite this document:
urn:nbn:de:bvb:355-epub-243331
Mankovsky, Sergey ; Polesya, Svitlana ; Bornemann, Sven ; Minar, Jan ; Hoffmann, F. ; Back, Christian ; Ebert, Hubert
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Date of publication of this fulltext: 15 May 2012 12:35


Abstract

The magnetocrystalline anisotropy (MCA) of (Ga,Mn)As films has been studied on the basis of ab initio electronic structure theory by performing magnetic torque calculations. An appreciable contribution to the in-plane uniaxial anisotropy can be attributed to an extended region adjacent to the surface. Calculations of the exchange tensor allow to ascribe a significant part to the MCA to the ...

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