Electronic Energy Structure of TiCu and Ti2Cu |
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| Authors: | U Gelius A B Kolpachev O V Kolpacheva I Ya Nikiforov A A Chularis |
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| Institution: | (1) University of Uppsala, Sweden;(2) Taganrog State Radiotechnical University, Russia;(3) Don State Technical University, Rostov-on-Don |
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| Abstract: | The electronic energy structure (EES) of the valence band in tetragonal TiCu and Ti2Cu was studied experimentally and theoretically. The experimental study of valence band EES was carried out by X-ray photoelectron spectroscopy (XPS). The calculations were performed in terms of the cluster version of multiple scattering theory in a self-consistent field approximation. The results are compared with X-ray emission spectroscopy data available in the literature. The density of state curves agree well with spectroscopic data. The major contribution to XPS is from the copper d-states. The specifics of chemical bonding in the compounds leading to the observed changes in the shape of the valence band X-ray photoelectron spectra are discussed. |
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