Enhancement of the Electron Spin Polarization in the Photoyield of Ni(111) in the Vacuum Ultraviolet
- 18 June 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 42 (25), 1705-1708
- https://doi.org/10.1103/physrevlett.42.1705
Abstract
We have found that the spin polarization of the photoyield from single crystal Ni(111) at 16.8- and 21.2-eV photon energy is (8.0±3.5)% and (8.1±2)%, respectively, which is significantly larger than the bulk electron-spin polarization. The results of a theoretical model calculation are in good agreement with the experiment. We interpret this as direct evidence for spin-dependent electron-electron scattering in an itinerant strong ferromagnet.Keywords
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