Photoemission of spin-polarized electrons from tungsten: Theoretical predictions
- 15 November 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 16 (10), 4283-4287
- https://doi.org/10.1103/physrevb.16.4283
Abstract
We have calculated the spin-polarized spectrum of electrons photoemitted by circularly polarized light in tungsten. Results are given for free and cesiated surfaces along the [100] and [111] directions. In the [110] direction there is no spin polarization. The calculation is based on the three-step model and involves a group-theoretical analysis of the direct optical excitations and their joint density of states. 100% polarization is predicted for certain photon energy regions.Keywords
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