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Synchrotron photoemission study of (Zn,Co)O films with uniform Co distribution

  • E. Guziewicz
  • M. I. Lukasiewicz
  • L. Wachnicki
  • K. Kopalko
  • A. Kovacs
  • R. E. Dunin-Borkowski
  • B. S. Witkowski
  • B. J. Kowalski
  • Janusz Sadowski
  • M. Sawicki
  • R. Jakiela
  • M. Godlewski
Publiceringsår: 2011
Språk: Engelska
Sidor: 1046-1050
Publikation/Tidskrift/Serie: Radiation Physics and Chemistry
Volym: 80
Nummer: 10
Dokumenttyp: Konferensbidrag
Förlag: Elsevier


We present results of a resonant photoemission study of (Zn,Co)O films with Co content between 2% and 7%. The films were grown by Atomic Layer Deposition (ALD) at low temperature of 160 degrees C and show fully paramagnetic behavior. The Co ions are uniformly distributed in the ZnO matrix and are free of foreign phases and metal accumulations as indicated by TEM data. The electronic structure of (Zn,Co)O films was studied by Resonant Photoemission Spectroscopy across the Co3p-Co3d photoionization threshold. We have observed that the resonant enhancement of the photoemission intensity from the Co3d shell is not the same for samples with different cobalt content. We suggest that the Co3d contribution to the valence band depends on both Co and H content. (C) 2011 Elsevier Ltd. All rights reserved.


  • Natural Sciences
  • Physical Sciences
  • Diluted magnetic semiconductors
  • Atomic layer deposition
  • Resonant
  • photoemission spectroscopy
  • Electronic structure


10th International School and Symposium on Synchrotron Radiation in Natural Science (ISSRNS)
  • ISSN: 0969-806X

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