A neutron scattering study of lattice dynamics of HgTe and HgSe

  • H. Kepa
  • T. Giebultowicz
  • B. Buras
  • B. Lebech
  • K. Clausen
6. Lattice Dynamics and Phase Transition
Part of the Lecture Notes in Physics book series (LNP, volume 152)


The dispersion relations for the acoustic and optic phonons in HgTe and for the acoustic phonons in HgSe were determined by neutron inelastic scattering in three high symmetry directions. The effect of the free-carrier screening of the long-range electric field of LO phonons in HgTe was observed. The formalism of the rigid ion model is used for numerical calculations of the phonon dispersion relations and the phonon densities of states in HgTe and HgSe.


Acoustic Phonon Phonon Energy Neutron Inelastic Scattering Longitudinal Optic Phonon Longitudinal Optic 
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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • H. Kepa
    • 1
  • T. Giebultowicz
    • 1
  • B. Buras
    • 2
    • 3
  • B. Lebech
    • 2
  • K. Clausen
    • 2
  1. 1.Institute of Experimental PhysicsUniversity of WarsawWarsawPoland
  2. 2.Risø National LaboratoryRoskildeDenmark
  3. 3.Laboratory IIUniversity of CopenhagenCopenhagenDenmark

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