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Number of results
2001 | 100 | 3 | 335-341
Article title

Interlayer Exchange Coupling in Short Period GaMnAs/GaAs Superlattices

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EN
Abstracts
EN
The low dimensional structures containing III-V ferromagnetic semiconductors were intensively investigated in the last few years because of the variety of their potential applications. The aim of the present work was to study the interlayer exchange coupling in the short period GaMnAs/GaAs superlattices containing 16 or 8 GaMnAs monolayers. Samples with the magnetic layers corresponding to the mixed crystal composition with 5% or 6% of Mn were grown by MBE technique and characterized by both high-resolution X-ray diffraction and Raman scattering methods. Folded acoustic phonons were observed for the first time for this particular quantum system in the Raman scattering spectra. The interlayer exchange coupling in selected superlattices was investigated by both elastic neutron scattering (diffraction) and polarized neutron reflectivity measurements. Presence of the smooth interfaces and the stability of the superlattice period were confirmed by neutron reflectometry data. Ferromagnetic correlation of the magnetization vector in subsequent GaMnAs magnetic layers was demonstrated by both experimental methods.
Keywords
EN
Publisher

Year
Volume
100
Issue
3
Pages
335-341
Physical description
Dates
published
2001-09
received
2001-06-01
Contributors
  • Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Laboratoire Leon Brillouin, CE Saclay, 91191 Gif-sur-Yvette cedex, France
author
  • Laboratoire Leon Brillouin, CE Saclay, 91191 Gif-sur-Yvette cedex, France
author
  • Laboratoire des Milieux Désordonnés et Hétérogènes, UPMC, 4, pl. Jussieu, 75252 Paris, France
author
  • Laboratoire des Milieux Désordonnés et Hétérogènes, UPMC, 4, pl. Jussieu, 75252 Paris, France
author
  • Department of Experimental Physics, Chalmers University of Technology, Göteborg, Sweden
author
  • Department of Experimental Physics, Chalmers University of Technology, Göteborg, Sweden
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv100n305kz
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