Speakers: Josef Kudrnovský* (Department of Condensed Matter Theory, Institute of Physics ASCR)
Place: Na Slovance, přednáškový sál v přízemí
Presented in English
Organisers:
Department of Condensed Matter Theory
Abstract:
We present first-principles study of transport quantities of metallic ferromagnets developed in the framework of the fully relativistic tight-binding linear muffin-tin orbital method. The approach is based on the Kubo-Greenwood-Středa formula for the conductivity tensor, on the coherent potential approximation for random alloys, and on the concept of interatomic electron transport. We apply developed formalism to estimate the anisotropic magnetoresistance and the anomalous Hall effect for the following systems: (i) transition metal ferromagnets (Fe, Co, Ni); (ii) random Ni-based ferromagnetic alloys (Ni-Fe, Ni-Co, Ni-Mn); and the partially ordered Pd-rich PdFe alloys with the Cu3Au-lattice structure. A reasonable agreement with available experimental data is found.
* in collaboration with I. Turek and V. Drchal
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