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Photoemissionsmessungen an Europiumchalkogeniden

Photoemission-measurements on europium-chalcogenides

  • Published:
Physics of condensed matter

Abstract

From new photoemission measurements from EuO we show that the existing discrepancy between photoelectric- and optical results can be eliminated. The measurements on cleaved single crystal surfaces show sharper structure than measurements on evaporated films. The energy difference between the center of the 4f-levels and the maximum of the valence band density of states can be read directly from the energy distribution curves. This energy difference decreases with increasing lattice constant from 2.8 eV for EuO to 1.6 eV for EuSe. However the two substances exhibit similar structure in the valence band.

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Authors and Affiliations

  1. Laboratorium für Festkörperphysik, ETHZ, Hönggerberg, CH-8049, Zürich, Schweiz

    P. Cotti & P. Munz

Authors
  1. P. Cotti
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  2. P. Munz
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Cotti, P., Munz, P. Photoemissionsmessungen an Europiumchalkogeniden. Phys cond Matter 17, 307–315 (1974). https://doi.org/10.1007/BF01458810

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  • DOI: https://doi.org/10.1007/BF01458810

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