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Creation of MnAs nanoclusters during processing of GaMnAs

  • J. Bak-Misiuk
  • J. Z. Domagala
  • P. Romanowski
  • E. Dynowska
  • E. Lusakowska
  • A. Misiuk
  • W. Paszkowicz
  • Janusz Sadowski
  • A. Barcz
  • W. Caliebe
Publiceringsår: 2009
Språk: Engelska
Sidor: 116-119
Publikation/Tidskrift/Serie: Radiation Physics And Chemistry
Volym: 78
Dokumenttyp: Konferensbidrag
Förlag: Elsevier


GaMnAs layers on (0 0 1)-oriented GaAs substrates were grown by the molecular beam epitaxy (MBE) method. Structural properties of samples processed at up to 920 K under hydrostatic Ar pressure up to 1.1 GPa were investigated by X-ray, secondary ion mass spectroscopy and atomic force microscopy methods. The sign of strain (compressive or tensile) of the GaMnAs layers, related to a creation of MnAs nanoclusters, is found to be dependent on processing conditions and on primary structure defects, whereas it was independent of Mn concentration. An influence of the defects structure in as-grown samples on the strain state of processed GaMnAs layers is discussed. (C) 2009 Elsevier Ltd. All rights reserved.


  • Natural Sciences
  • Physical Sciences
  • Nanocluster
  • Strain
  • X-ray diffraction
  • Thin layer
  • GaMnAs
  • Annealing
  • High pressure


9th International School and Symposium on Synchrotron Radiation in Natural Science (ISSRNS-9)
  • ISSN: 0969-806X

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