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Theory of spin-polarized high-resolution electron energy loss spectroscopy from nonmagnetic surfaces with a large spin-orbit coupling

Published inPhysical Review B, vol. 106, no. 23, 235117
Publication date2022-12-12
First online date2022-12-12
Abstract

The scattering theory of low-energy (slow) electrons has been developed by Evans and Mills [Phys. Rev. B 5, 4126 (1972)]. The formalism is merely based on the electrostatic Coulomb interaction of the scattering electrons with the charge-density fluctuations above the surface and can describe most of the interesting features observed in the high-resolution electron energy-loss spectroscopy experiments. Here we extend this theory by including the spin-orbit coupling in the scattering process. We discuss the impact of this interaction on the scattering cross section. In particular, we discuss cases in which a spin-polarized electron beam is scattered from nonmagnetic surfaces with a strong spin-orbit coupling. We show that under some assumptions one can derive an expression for the scattering cross section, which can be used for numerical calculations of the spin-polarized spectra recorded by spin-polarized high-resolution electron energy-loss spectroscopy experiments.

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Citation (ISO format)
ZAKERI, Khalil, BERTHOD, Christophe. Theory of spin-polarized high-resolution electron energy loss spectroscopy from nonmagnetic surfaces with a large spin-orbit coupling. In: Physical Review B, 2022, vol. 106, n° 23, p. 235117. doi: 10.1103/PhysRevB.106.235117
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Additional URL for this publicationhttps://link.aps.org/doi/10.1103/PhysRevB.106.235117
Journal ISSN2469-9950
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