1. Spin- and angle-resolved photoemission spectroscopy study of the Au(1 1 1) Shockley surface state
- Author
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Muntwiler, Matthias, Hoesch, Moritz, Petrov, Vladimir N., Hengsberger, Matthias, Patthey, Luc, Shi, Ming, Falub, Mihaela, Greber, Thomas, and Osterwalder, Jürg
- Subjects
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PHOTOEMISSION , *SPECTRUM analysis , *POLARIZATION (Nuclear physics) , *ELECTRONS - Abstract
The spin character of the splitting of the Shockley surface state on Au(111) is directly verified by measurements of the in-plane and out-of-plane spin polarizations in angle-resolved photoemission spectra. The two parabolic sub-bands that are momentum-shifted with respect to each other, reveal a distinct, opposite spin polarization that within the errors lies in the surface plane. The measured in-plane orientation of the spin vectors is consistent with the simple spin structure expected from a nearly-free-electron model, where the polarization axis is tangential to the Fermi surface of the surface state. [Copyright &y& Elsevier]
- Published
- 2004
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