Analysis of the spin Hall effect in CuIr alloys: Combined approach of density functional theory and Hartree-Fock approximation.

Autor:	Zhuo Xu, Bo Gu, Michiyasu Mori, Ziman, Timothy, Sadamichi Maekawa
Předmět:	HALL effect DENSITY functional theory MOLECULAR dynamics MICROALLOYING MAGNETIC field effects
Zdroj:	Journal of Applied Physics; 2015, Vol. 117 Issue 17, p17D510-1-17D510-4, 4p, 1 Diagram, 2 Graphs
Abstrakt:	We analyze the spin Hall effect in CuIr alloys in theory by the combined approach of the density functional theory (DFT) and Hartree-Fock (HF) approximation. The spin Hall angle (SHA) is obtained to be negative without the local correlation effects. After including the local correlation effects of the 5d orbitals of Ir impurities, the SHA becomes positive with realistic correlation parameters and consistent with experiment [Niimi et al., Phys. Rev. Lett. 106, 126601 (2011)]. Moreover, our analysis shows that the DFT+HF approach is a convenient and general method to study the influence of local correlation effects on the spin Hall effect. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu