Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5426558 | Surface Science | 2007 | 5 Pages |
Abstract
The valence electronic structures of the Cu-covered ZnO(1 0 1¯ 0) surfaces have been studied by angle-resolved photoemission spectroscopy utilizing synchrotron radiation. The coverage dependent change in the Cu valence band indicates the cluster formation of Cu at room temperature. The Cu 3d state forms a band with an energy dispersion, and the coverage dependence of the Cu 3d band structure suggests that the electronic structure of the Cu cluster is initially two-dimensional and turns to be three-dimensional at high coverages. The annealing effect on the morphology and the electronic structure of the Cu clusters is also examined and discussed.
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Authors
K. Ozawa, Y. Oba, K. Edamoto,