Magnetic Anisotropy in GeMnTe - ab initio Calculations |
| A. Łusakowskia, P. Bogusławskia,b
aInstitute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland bInstitute of Physics, University of Bydgoszcz, J.K. Chodkiewicza 30, 85-072 Bydgoszcz, Poland |
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| Density functional theory calculations of the energy of magnetic anisotropy in GeMnTe were performed using OpenMX package with fully relativistic pseudopotentials. The discussion of microscopic origin of magnetic anisotropy was conducted. The main conclusion is that the magnetic anisotropy is caused by interplaty between spin-orbit and Coulomb interactions. The discussion includes also the influence of the free carriers concentration on the amplitude of energy of magnetic anisotropy. The important role of the chemical disorder is also pointed out. |
DOI: 10.12693/APhysPolA.126.1177 PACS numbers: 75.30.Gw, 71.15.Mb |