An improvement of surface smoothness and lattice match of CeO2 buffer layers on R-sapphire processed by MOCVD

I. E. Graboy, N. V. Markov, V. V. Maleev, A. R. Kaul, S. N. Polyakov, V. L. Svetchnikov, H. W. Zandbergen, K. H. Dahmen

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Epitaxial thin films of CeO2 and Ce1-xRxO2-y (R=Y, Nd; x=0-0.32) on R-sapphire were prepared by band flash evaporation MOCVD, It was demonstrated that the smoothness of the films can be improved by a decrease of deposition rate and by post deposition annealing at 1000 °C, The lattice match of buffer layers with R-A12O3 and YBa2Cu3O7-δ was improved by doping of ceria with yttrium and neodymium correspondingly, A bilayer structure Ce0.7Nd0.3O2-y/Ce0.68Y 0.32O2-y/R-AI2O3 is proposed as potential substrate material for YBa2Cu3O7-δ deposition.

Original languageEnglish
Pages (from-to)318-321
Number of pages4
JournalJournal of Alloys and Compounds
Volume251
Issue number1-2
Publication statusPublished - 1 Apr 1997
Externally publishedYes

Fingerprint

Aluminum Oxide
Metallorganic chemical vapor deposition
Buffer layers
Sapphire
Neodymium
Yttrium
Epitaxial films
Cerium compounds
Deposition rates
Evaporation
Doping (additives)
Annealing
Thin films
Substrates
barium copper yttrium oxide

Keywords

  • Deposition rate decrease
  • MOCVD
  • Post deposition annealing

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Graboy, I. E., Markov, N. V., Maleev, V. V., Kaul, A. R., Polyakov, S. N., Svetchnikov, V. L., ... Dahmen, K. H. (1997). An improvement of surface smoothness and lattice match of CeO2 buffer layers on R-sapphire processed by MOCVD. Journal of Alloys and Compounds, 251(1-2), 318-321.

An improvement of surface smoothness and lattice match of CeO2 buffer layers on R-sapphire processed by MOCVD. / Graboy, I. E.; Markov, N. V.; Maleev, V. V.; Kaul, A. R.; Polyakov, S. N.; Svetchnikov, V. L.; Zandbergen, H. W.; Dahmen, K. H.

In: Journal of Alloys and Compounds, Vol. 251, No. 1-2, 01.04.1997, p. 318-321.

Research output: Contribution to journalArticle

Graboy, IE, Markov, NV, Maleev, VV, Kaul, AR, Polyakov, SN, Svetchnikov, VL, Zandbergen, HW & Dahmen, KH 1997, 'An improvement of surface smoothness and lattice match of CeO2 buffer layers on R-sapphire processed by MOCVD', Journal of Alloys and Compounds, vol. 251, no. 1-2, pp. 318-321.
Graboy IE, Markov NV, Maleev VV, Kaul AR, Polyakov SN, Svetchnikov VL et al. An improvement of surface smoothness and lattice match of CeO2 buffer layers on R-sapphire processed by MOCVD. Journal of Alloys and Compounds. 1997 Apr 1;251(1-2):318-321.
Graboy, I. E. ; Markov, N. V. ; Maleev, V. V. ; Kaul, A. R. ; Polyakov, S. N. ; Svetchnikov, V. L. ; Zandbergen, H. W. ; Dahmen, K. H. / An improvement of surface smoothness and lattice match of CeO2 buffer layers on R-sapphire processed by MOCVD. In: Journal of Alloys and Compounds. 1997 ; Vol. 251, No. 1-2. pp. 318-321.
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AU - Polyakov, S. N.

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