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Electronic structure and adsorption properties of the system Cs/O/W(110)

  • Low-Dimensional Systems and Surface Physics
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Abstract

Comparative studies are carried out of the Cs/O/W(110) and Cs/W(110) adsorption systems. The method of threshold photoemission spectroscopy is used to study the work function and electronic structure in the energy region near the Fermi level as functions of the sub-monolayer cesium coverage. A significant increase of the saturation cesium coverage is observed on the O/W(110) surface. A new adsorption-induced surface band is observed in the electronic spectrum of the system Cs/O/W(110) with a binding energy ∼0.7 eV. For coverages of about one monolayer metallization of the adsorbed layer is observed. It is shown that the electronic structures of the systems Cs/O/W(110) and Cs/W(110) are similar for low coverages. A difference in the adsorption properties for these two systems occurs for coverages close to one monolayer, which is explained by the creation of new interaction centers of the Cs adatoms on the W(110) surface in the presence of oxygen.

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Authors and Affiliations

  1. St. Petersburg State Technical University, 195251, St. Petersburg, Russia

    A. N. Andronov & D. V. Daineka

  2. A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021, St. Petersburg, Russia

    G. V. Benemanskaya & G. É. Frank-Kamenetskaya

Authors
  1. A. N. Andronov
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  2. D. V. Daineka
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  3. G. V. Benemanskaya
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  4. G. É. Frank-Kamenetskaya
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Additional information

Fiz. Tverd. Tela (St. Petersburg) 39, 1683–1686 (September 1997)

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Andronov, A.N., Daineka, D.V., Benemanskaya, G.V. et al. Electronic structure and adsorption properties of the system Cs/O/W(110). Phys. Solid State 39, 1502–1505 (1997). https://doi.org/10.1134/1.1130107

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  • DOI: https://doi.org/10.1134/1.1130107

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