title: Spin-dependent low-energy 4He+ ion scattering from nonmagnetic surfaces.
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.
authors: National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. suzuki.taku@nims.go.jp
authors: T T
authors: TT
authors: Suzuki
authors: Y
authors: Y
authors: Yamauchi
authors: S
authors: S
authors: Hishita