Numéro
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
Page(s) C6-737 - C6-739
DOI https://doi.org/10.1051/jphyscol:19816216
International Conference on Phonon Physics

J. Phys. Colloques 42 (1981) C6-737-C6-739

DOI: 10.1051/jphyscol:19816216

VIBRATION SPECTRA OF CRYSTALS IN AN INCOMMENSURATE PHASE

T. Janssen et C. de Lange

Institute for Theoretical Physics, University of Nijmegen, Toernooiveld, 6525 ED Nijmegen, The Netherlands


Abstract
The solutions of the equations of motion and the structure of the spectra of incommensurate crystal phases is exemplified on a model in one dimension. Use is made of the superspace symmetry of the problem.