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Studying the effect of oxygen content on the electron structure of Nd1.85Ce0.15CuO4 by means of photoelectron spectromicroscopy

Ivanov, A. A.; Zakharov, Alexei LU ; Menushenkov, A. P.; Tsetlin, M. B.; Mikheeva, M. N. and Lindau, Ingolf LU (2007) In Journal of Experimental and Theoretical Physics 105(1). p.241-245
Abstract
Changes in the electron structure of the surface layer of Nd1.85Ce0.15CuO4 (NCCO) epitaxial films, which were caused by variation of the oxygen content and modification of the crystal structure of samples as a result of Ar+ ion etching and annealing, have been studied by means of photoelectron spectromicroscopy. A method is proposed for the cleaning the surface of oxygen-containing superconductors, which includes sequential stages of deep ion etching, high-temperature annealing in an oxygen-containing atmosphere (for the structural recovery and saturation with oxygen), a short-term ion etching (for the removal of an adsorbed layer of the oxidizer), and the final vacuum annealing of radiation-induced effects. The application of this... (More)
Changes in the electron structure of the surface layer of Nd1.85Ce0.15CuO4 (NCCO) epitaxial films, which were caused by variation of the oxygen content and modification of the crystal structure of samples as a result of Ar+ ion etching and annealing, have been studied by means of photoelectron spectromicroscopy. A method is proposed for the cleaning the surface of oxygen-containing superconductors, which includes sequential stages of deep ion etching, high-temperature annealing in an oxygen-containing atmosphere (for the structural recovery and saturation with oxygen), a short-term ion etching (for the removal of an adsorbed layer of the oxidizer), and the final vacuum annealing of radiation-induced effects. The application of this procedure to NCCO films allowed an electron structure to be obtained, which was identical to that inherent in the surface of single crystals cleaved in situ in the measurement chamber. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Experimental and Theoretical Physics
volume
105
issue
1
pages
241 - 245
publisher
MAIK Nauka/Interperiodica
external identifiers
  • wos:000248825500053
  • scopus:36048988391
ISSN
1063-7761
DOI
10.1134/S1063776107070539
language
English
LU publication?
yes
id
4b490929-e2a5-4d98-914e-c1e8833ac0fd (old id 688951)
date added to LUP
2007-12-13 09:26:58
date last changed
2017-01-01 07:02:07
@article{4b490929-e2a5-4d98-914e-c1e8833ac0fd,
  abstract     = {Changes in the electron structure of the surface layer of Nd1.85Ce0.15CuO4 (NCCO) epitaxial films, which were caused by variation of the oxygen content and modification of the crystal structure of samples as a result of Ar+ ion etching and annealing, have been studied by means of photoelectron spectromicroscopy. A method is proposed for the cleaning the surface of oxygen-containing superconductors, which includes sequential stages of deep ion etching, high-temperature annealing in an oxygen-containing atmosphere (for the structural recovery and saturation with oxygen), a short-term ion etching (for the removal of an adsorbed layer of the oxidizer), and the final vacuum annealing of radiation-induced effects. The application of this procedure to NCCO films allowed an electron structure to be obtained, which was identical to that inherent in the surface of single crystals cleaved in situ in the measurement chamber.},
  author       = {Ivanov, A. A. and Zakharov, Alexei and Menushenkov, A. P. and Tsetlin, M. B. and Mikheeva, M. N. and Lindau, Ingolf},
  issn         = {1063-7761},
  language     = {eng},
  number       = {1},
  pages        = {241--245},
  publisher    = {MAIK Nauka/Interperiodica},
  series       = {Journal of Experimental and Theoretical Physics},
  title        = {Studying the effect of oxygen content on the electron structure of Nd1.85Ce0.15CuO4 by means of photoelectron spectromicroscopy},
  url          = {http://dx.doi.org/10.1134/S1063776107070539},
  volume       = {105},
  year         = {2007},
}