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Inverse photoemission spectroscopy of the unoccupied electronic structure of Na/Cu(110) |
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| Authors: | O. Zeybek A.M. Davarpanah |
| Affiliation: | a Department of Physics, Faculty of Science and Arts, Balikesir University, 18.km Cagis Campus, 10100 Balikesir, Turkey b Department of Physics, Sistan and Baluchestan University, Zanedan, Islamic Republic of Iran c Surface Science Research Centre and Department of Physics, University of Liverpool, Liverpool L69 3BX, UK |
| Abstract: | The unoccupied electronic states of Na thin films on a Cu(110) substrate have been measured by inverse photoemission spectroscopy (IPES). The IPES spectrum provides the intensity of the unoccupied states, which decreases with increasing Na coverage at off-normal incidence of the electron beam. The IPES spectra at 17 and 19 eV incident electron energies show a shift towards the Fermi level with increasing Na coverage for the peak at ∼7.8 eV. |
| Keywords: | 73.20.&minus r 79.60.&minus i |
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