The electronic structure of Rhodium: Angle-resolved studies of photoelectron and secondary electron emission |
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Authors: | A Goldmann G Rosina E Bertel F P Netzer |
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Institution: | (1) Fachbereich Physik, Universität Kassel, D-3500 Kassel, Federal Republic of Germany;(2) Institut für Physikalische Chemie, Universität Innsbruck, A-6020 Innsbruck, Austria;(3) Present address: MPI für Plasmaphysik, D-8046 Garching bei München, FRG |
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Abstract: | We report electron spectroscopic studies of the Rh(111) surface, with the aim to obtain bulk band-structure information. We have measured normal photoemision using tunable synchrotron radiation in the range of photon energies between 11 eV and 55 eV, and angle-dependent photoemission along the LUX and LKL azimuths using the He resonance lines (=21.2 eV, 40.8 eV). To complement these data, we studied angleresolved secondary electron emission after excitation with electrons and photons. We derive parts of the one-electron energy dispersionE(k) along L, and determine the energies of several bulk critical points (in eV):E(>
7+/8+)=–2.75±0.10,E(>
8+=–0.85±0.10,E(>
7–=16.1±0.5,E(>
6–/>
8–)=20.5±0.5,E(X
7+)=–5.0±0.1,E(L
6+)=–5.6±0.5,E(L
6+/L
4++5+)=–2.65±0.10,E(L
6+)=9.0±0.5 eV. Our results are compared to several available band structure calculations. |
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Keywords: | |
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