Exchange and spin-orbit induced phenomena in diluted (Ga,Mn)As

A broad range of physical properties (magnetic moments, Curie temperatures, spin-stiffness, residual resistivity, anisotropic magnetoresistance, anomalous Hall effect, and Gilbert damping) of a prototypical spintronics material, namely, epitaxially grown GaMnAs alloys, was determined from first principles. An overall good agreement with recent experiments on well-annealed samples was obtained for all studied quantities. The unique feature of the present study is its complexity and the consistent description of several independent quantities. The developed methodology can be used for investigation of other materials with potential applications in spintronics.

J. Kudrnovský, V. Drchal, and I. Turek: Exchange and spin-orbit induced phenomena in diluted (Ga,Mn)As from first principles, Phys. Rev. B94 (2016) 054428