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Resonant interband scattering of image-potential states

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Abstract.

Image-potential states in front of a clean Cu (100) surface were investigated by time- and angle-resolved two-photon photo-emission (2PPE). We observe a previously unknown quasi-elastic relaxation channel, which efficiently couples states with different quantum numbers, n, and parallel momenta, k∥. This process of resonant interband scattering (RIS) is independent of sample temperature and shows a close relationship to the pure dephasing of image-potential states.

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Authors and Affiliations

  1. Fachbereich Physik und Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität, 35032 Marburg, Germany, Germany

    W. Berthold, J. Güdde & U. Höfer

  2. Physik-Department E20, Technische Universität München, 85748 Garching, Germany, Germany

    P. Feulner

Authors
  1. W. Berthold
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  2. J. Güdde
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  3. P. Feulner
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  4. U. Höfer
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Received: 1 October 2001 / Revised version: 24 October 2001 / Published online: 23 November 2001

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Berthold, W., Güdde, J., Feulner, P. et al. Resonant interband scattering of image-potential states. Appl Phys B 73, 865–868 (2001). https://doi.org/10.1007/s003400100765

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  • DOI: https://doi.org/10.1007/s003400100765

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