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CATION AND ANION ELECTRONIC EXCITATIONS IN MgO ANDBaF2CRYSTALS UNDER EXCITATION BY PHOTONS UP TO 75eV

Author

Listed:
  • M. KIRM

    (II. Institut für Experimentalphysik der Universität Hamburg Luruper Chaussee 149, Hamburg 22 761, Germany)

  • S. VIELHAUER

    (II. Institut für Experimentalphysik der Universität Hamburg Luruper Chaussee 149, Hamburg 22 761, Germany)

  • G. ZIMMERER

    (II. Institut für Experimentalphysik der Universität Hamburg Luruper Chaussee 149, Hamburg 22 761, Germany)

  • A. LUSHCHIK

    (Institute of Physics, University of Tartu, Riia 142, Tartu 51 014, Estonia)

  • Ch. LUSHCHIK

    (Institute of Physics, University of Tartu, Riia 142, Tartu 51 014, Estonia)

Abstract

The creation of primary and secondary cation excitations was investigated for MgO andBaF2crystals using the energy-and time-resolved luminescence method. It was shown that the primary cation excitations in MgO created by photons of 50–65 eV decay with the formation of anion free excitons and electron–hole pairs. The formation of secondary cation holes by hot photoelectrons in theBa2+5p shell causes the increase of cross-luminescence intensity whereas the creation of neither primary nor secondary cation excitons causes the appearance of cross-luminescence inBaF2.

Suggested Citation

  • M. KIRM & S. VIELHAUER & G. ZIMMERER & A. LUSHCHIK & Ch. LUSHCHIK, 2002. "CATION AND ANION ELECTRONIC EXCITATIONS IN MgO ANDBaF2CRYSTALS UNDER EXCITATION BY PHOTONS UP TO 75eV," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(02), pages 1363-1368.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:02:n:s0218625x02003810
    DOI: 10.1142/S0218625X02003810
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