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Electronic surface structure of n-ML Ag/Cu(111) and Cs/n-ML Ag/Cu(111) as investigated by 2PPE and STS

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Abstract

We investigated the electronic structure of epitaxially grown silver films on Cu(111) with and without adsorption of cesium by means of scanning tunneling spectroscopy and two-photon photoemission. This system has been chosen as a model system to engineer and measure the dynamics of charge-transfer processes between an adsorbate and a heterogeneous substrate. Special emphasis has been laid on the investigation of the energy shift of the Shockley-type surface state and an excited cesium resonance as a function of Ag film thickness. For the cesium resonance we observe an increase in line width with increasing layer thickness.

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Authors and Affiliations

  1. Department of Physics, Technical University of Kaiserslautern, 67663, Kaiserslautern, Germany

    M. Wessendorf, C. Wiemann, M. Bauer & M. Aeschlimann

  2. Max-Planck-Institute for Solid State Research, 70569, Stuttgart, Germany

    M.A. Schneider & K. Kern

  3. IPN, Ecole Polytechnique Federale de Lausanne, 1015, Lausanne, Switzerland

    H. Brune & K. Kern

Authors
  1. M. Wessendorf
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  2. C. Wiemann
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  3. M. Bauer
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  4. M. Aeschlimann
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  5. M.A. Schneider
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  6. H. Brune
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  7. K. Kern
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Corresponding author

Correspondence to M. Bauer.

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PACS

68.37.Ef; 68.43.-h; 68.55.Jk; 73.20.-r

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Wessendorf, M., Wiemann, C., Bauer, M. et al. Electronic surface structure of n-ML Ag/Cu(111) and Cs/n-ML Ag/Cu(111) as investigated by 2PPE and STS. Appl Phys A 78, 183–188 (2004). https://doi.org/10.1007/s00339-003-2313-3

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  • DOI: https://doi.org/10.1007/s00339-003-2313-3

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