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The phonon dispersion in 6H-SiC investigated by inelastic neutron scattering

Author

Listed:
  • B. Dorner
  • H. Schober
  • A. Wonhas
  • M. Schmitt
  • D. Strauch

Abstract

Using coherent inelastic neutron scattering we have investigated the phonon dispersion relation of bulk hexagonal 6H-SiC. The complete set of phonon branches has been determined along the Γ−A and 14 out of 36 branches along the Γ−M direction. The experimental data are compared to ab initio calculations for cubic 3C-SiC transposed to 6H-SiC. Good agreement between theory and experiment is found for the Γ−A direction. The discrepancies encountered for the Γ−M direction are interpreted as evidence for a dependence of the dynamical response in the SiC system on the stacking sequence. Copyright EDP Sciences, Springer-Verlag 1998

Suggested Citation

  • B. Dorner & H. Schober & A. Wonhas & M. Schmitt & D. Strauch, 1998. "The phonon dispersion in 6H-SiC investigated by inelastic neutron scattering," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 5(4), pages 839-846, November.
    • Handle: RePEc:spr:eurphb:v:5:y:1998:i:4:p:839-846:10.1007/s100510050510
    DOI: 10.1007/s100510050510
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