Numéro
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
Page(s) C6-341 - C6-343
DOI https://doi.org/10.1051/jphyscol:19816100
International Conference on Phonon Physics

J. Phys. Colloques 42 (1981) C6-341-C6-343

DOI: 10.1051/jphyscol:19816100

ELECTROSTATIC ENERGY AND LATTICE VIBRATIONS IN THIN IONIC SLABS

G. Kanellis1, J.F. Morhange2 et M. Balkanski2

1  First Laboratory of Physics, University of Thessaloniki - Greece.
2  Laboratoire de Physique des Solides de l'Université Pierre et Marie Curie, associé au CNRS, 4 Place Jussieu, 75230 Paris Cedex 05, France.


Abstract
We have calculated the Electrostatic energy per cell for thin ionic slabs of any structure and any orientation, as a function of the position of the cell and the thickness of the slab. It is shown that a macroscopic depolarizing field is created inside the slabs of certain orientations. The Coulomb interaction between plane lattices is also calculated for the general case and the results are applied to GaAs.