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

Guziewicz, E.; Lukasiewicz, M. I.; Wachnicki, L.; Kopalko, K.; Kovacs, A.; Dunin-Borkowski, R. E.; Witkowski, B. S.; Kowalski, B. J.; Sadowski, Janusz LU and Sawicki, M., et al. (2011) 10th International School and Symposium on Synchrotron Radiation in Natural Science (ISSRNS) In Radiation Physics and Chemistry 80(10). p.1046-1050
Abstract
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... (More)
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. (Less)
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subject
keywords
Diluted magnetic semiconductors, Atomic layer deposition, Resonant, photoemission spectroscopy, Electronic structure
in
Radiation Physics and Chemistry
volume
80
issue
10
pages
1046 - 1050
publisher
Elsevier
conference name
10th International School and Symposium on Synchrotron Radiation in Natural Science (ISSRNS)
external identifiers
  • wos:000293424000010
  • scopus:79960271749
ISSN
0969-806X
DOI
10.1016/j.radphyschem.2011.05.004
language
English
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yes
id
283ee26d-0a72-4b48-bbfd-82b0ff995282 (old id 2065315)
date added to LUP
2011-08-29 17:35:48
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2017-01-01 05:28:05
@inproceedings{283ee26d-0a72-4b48-bbfd-82b0ff995282,
  abstract     = {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.},
  author       = {Guziewicz, E. and Lukasiewicz, M. I. and Wachnicki, L. and Kopalko, K. and Kovacs, A. and Dunin-Borkowski, R. E. and Witkowski, B. S. and Kowalski, B. J. and Sadowski, Janusz and Sawicki, M. and Jakiela, R. and Godlewski, M.},
  booktitle    = {Radiation Physics and Chemistry},
  issn         = {0969-806X},
  keyword      = {Diluted magnetic semiconductors,Atomic layer deposition,Resonant,photoemission spectroscopy,Electronic structure},
  language     = {eng},
  number       = {10},
  pages        = {1046--1050},
  publisher    = {Elsevier},
  title        = {Synchrotron photoemission study of (Zn,Co)O films with uniform Co distribution},
  url          = {http://dx.doi.org/10.1016/j.radphyschem.2011.05.004},
  volume       = {80},
  year         = {2011},
}