Title: Vplyv konečnej teploty na vodivostné vlastnosti Gd s prvých princípov
Impact of finite temperatures on the transport properties of Gd from first principles
Authors: Chadova, Kristina
Mankovsky, Sergiy
Minár, Jan
Ebert, Hubert
Citation: CHADOVA, K., MANKOVSKY, S., MINÁR, J., EBERT, H. Impact of finite temperatures on the transport properties of Gd from first principles. Physical Review B, 2017, roč. 95, č. 12. ISSN 2469-9950.
Issue Date: 2017
Publisher: American Physical Society
Document type: článek
URI: http://hdl.handle.net/11025/29234
ISSN: 2469-9950
Keywords: Prvě princípy, teória funktionálov hustoty, anomlálny Hallov efekt,LDA+U
Keywords in different language: First priciples, density functional theory, finite temperature, ananmolaus Hall effect, LDA+U
Abstract: V tejto publikácii študujeme vplyv konečnej teploty na elektrickú vodivosť tuhých látok. V magntickom systéme ako je Gd je nutné zahrnúť do popisu nielen pohyb mriežky ale aj spinově fluktuácie. Tu prezentujeme formalizmus na základe CPA teórie ako zahrnúť tieto efekty na popis anomálneho efektu v Gd.
Abstract in different language: Finite-temperature effects have a pronounced impact on the transport properties of 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 suggested within the framework of the multiple scattering formalism. Employing the alloy analogy model treated by means of the CPA, thermal lattice vibrations and spin fluctuations are effectively taken into account. In the present work the temperature dependence of the longitudinal resistivity and the anomalous Hall effect in the strongly correlated metal Gd is considered. The comparison with experiments demonstrates that the proposed numerical scheme does provide an adequate description of the electronic transport at finite temperatures.
Rights: © American Physical Society
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Články / Articles (CTM)

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