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Short-period GaMnAs/GaAs superlattices: Optical and magnetic characterization

På svenska

Author

  • W Szuszkiewicz
  • E Dynowska
  • F Ott
  • B Hennion
  • M Jouanne
  • JF Morhange
  • Janusz Sadowski

Summary, in English

Superlattices with magnetic layers containing from 8 to 16 GaMnAs monolayers corresponding to the mixed crystal composition between 5 and 6% of Mn and from 4 to 10 GaAs monolayers were grown by the low temperature MBE technique and characterized by Raman scattering. Folded acoustic phonons were observed for all superlattices in the Raman scattering spectra. The interlayer exchange coupling, found previously by the wide-angle neutron diffraction in selected superlattices was investigated by the spin-polarized neutron reflectometry. It was always of ferromagnetic type, no trace of antiferromagnetic coupling was found.

Department/s

Publishing year

2003

Language

English

Pages

209-212

Publication/Series

Journal of Superconductivity (Proceedings of the PASPS Conference held July 2002 in Würzburg, Germany)

Volume

16

Issue

1

Document type

Conference paper

Publisher

Springer

Topic

  • Physical Sciences
  • Natural Sciences

Keywords

  • neutron scattering
  • ferromagnetic semiconductor
  • interlayer exchange
  • coupling
  • folded acoustic phonons
  • Raman scattering

Conference name

PASPS Conference

Conference date

0001-01-02

Conference place

Würzburg, Germany

Status

Published

ISBN/ISSN/Other

  • ISSN: 1572-9605
  • ISSN: 0896-1107