Phonons in colloidal crystals
- 1 June 2002
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 58 (5) , 699-704
- https://doi.org/10.1209/epl/i2002-00322-3
Abstract
The dispersion curves of the phonons propagating in polycrystalline suspensions of hard-sphere colloids are measured by Brillouin scattering and calculated by band struc- ture techniques. Acoustic-like and optical-like experimental phonon dispersion relations are attributed to the interplay of the solvent matrix mode with the single-sphere vibration eigen- modes in these lattice structures.Keywords
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