Angle- and energy-resolved, spin-polarized electron emission spectroscopy to study surface magnetic and electronic properties

We report on a new technique, spin-polarized electron emission spectroscopy. Using grazing-angle, surface scattering of H⁺ and He⁺ ions at Ni(110), we find that the angle-resolved energy distribution of emitted spin-polarized electrons is significantly different from that of electron-induced secondary (cascade) electrons and exhibits a series of characteristic ``peaks'' (including element-specific Auger electrons). We obtain characteristic, spin-dependent information on the surface electronic structure of Ni(110) and on atom-surface charge-transfer processes.