Regensburg 2016 – scientific programme
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MA: Fachverband Magnetismus
MA 35: Spin dependent Transport Phenomena
MA 35.10: Talk
Wednesday, March 9, 2016, 17:30–17:45, H33
Longitudinal and transverse transport in Gadolinium at finite temperatures — •Kristina Chadova1, Sergiy Mankovsky1, Svitlana Polesya1, Jan Minar1,2, Diemo Ködderitzsch1, and Hubert Ebert1 — 1Universität München, Department Chemie, Butenandtstr. 5-13, D-81377 München — 2New Technologies-Research Centre, University of West Bohemia, Univerzitni 8, 306 14 Pilsen, Czech Republic
Finite temperature effects have a pronounced impact on the transport properties of the solids. In magnetic systems, besides the scattering of conduction electrons by impurities and phonons, an additional scattering source coming from the magnetic degrees of freedom must be taken into account. A first-principle scheme which treats all these scattering effects on equal footing was recently implemented within the framework of the multiple scattering formalism [1]. Employing the alloy analogy model treated by means of the CPA, the thermal lattice vibrations and spin fluctuations are effectively taken into account. The calculation of the transport properties is based on the Kubo-Středa equation. The computational scheme is implemented using the fully relativistic KKR Green function method. As an example, we consider the temperature dependence of the longitudinal resistivity and the anomalous Hall effect in the strongly correlated metal Gd. The comparison with experiments demonstrates that the proposed numerical scheme does, indeed, provide an adequate description of the DC electronic transport coefficients at finite temperatures.
[1] H. Ebert et al., PRB 91, 165132 (2015).