Electronic and optical properties of ferromagnetic GaMnAs in a multiband tight-binding approach

URN to cite this document:: urn:nbn:de:bvb:355-epub-78340
DOI to cite this document:: 10.5283/epub.7834

Turek, Marko ; Siewert, Jens ; Fabian, Jaroslav

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Date of publication of this fulltext: 05 Aug 2009 13:57

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Abstract

We consider the electronic properties of ferromagnetic bulk Ga1-xMnxAs at zero temperature using two realistic tight-binding models, one due to Tang and Flatte and one due to Masek. In particular, we study the density of states, the Fermi energy, the inverse participation ratio, and the optical conductivity with varying impurity concentration x=0.01-0.15. The results are very sensitive to the ...