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Updated: May 27, 2026

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
Published on: October 9, 2012
Spin-dependent low-energy 4He+ ion scattering from nonmagnetic surfaces
T T Suzuki1, Y Yamauchi, S Hishita
1National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. suzuki.taku@nims.go.jp
Abstract:
We investigated electron-spin-polarized (4)He(+) ion scattering on various nonmagnetic surfaces at kinetic energies below 2 keV. It was observed that the scattered He(+) ion yield depends on the He(+) ion spin. We interpret this spin-dependent scattering in terms of the spin-orbit coupling that acts transiently on the He(+)1s electron spin in the He(+)-target binary collision. This interpretation qualitatively explains the relationship between the spin-dependent scattering and the scattering geometry, incident velocity, and magnetic field arrangement. This is the first study to report spin-orbit coupling caused by projectile electron spin in ion scattering.
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