Orbital magnetic moment and extrinsic spin Hall effect for iron impurity in gold

Abstract

We report electronic structure calculations of an iron impurity in gold host. The spin, orbital and dipole magnetic moments were investigated using the LDA+$U$ correlated band theory. We show that the {\em around-mean-field}-LDA+$U$ reproduces the XMCD experimental data well and does not lead to formation of a large orbital moment on the Fe atom. Furthermore, exact diagonalization of the multi-orbital Anderson impurity model with the full Coulomb interaction matrix and the spin-orbit coupling is performed in order to estimate the spin Hall angle. The obtained value ${\gamma }_S\approx 0.025$ suggests that there is no giant extrinsic spin Hall effect due to scattering on iron impurities in gold.

5 pages, 2 figures

References in corpus (6)

• Direct electronic measurement of the spin Hall effect
• Theory of Spin Hall conductivity in n-doped GaAs
• Kondo decoherence: finding the right spin model for iron impurities in gold and silver
• Enhanced spin Hall effect by resonant skew scattering in orbital-selective Kondo effect
• Orbital magnetism in transition-metal systems: The role of local correlation effects
• Quantum Renormalization of the Spin Hall Effect

Cited by in corpus (2)

• Electronic excitation spectra of the five-orbital Anderson impurity model: From the atomic limit to itinerant atomic magnetism
• Enhancement of Spin-charge Conversion in Dilute Magnetic Alloys by Kondo Screening