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Journal Article

Phonons in colloidal crystals

MPS-Authors
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Fytas,  G.
MPI for Polymer Research, Max Planck Society;

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Steffen,  W.
MPI for Polymer Research, Max Planck Society;

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Citation

Penciu, R. S., Kafesaki, M., Fytas, G., Economou, E. N., Steffen, W., Hollingsworth, A., et al. (2002). Phonons in colloidal crystals. Europhysics Letters, 58(5), 699-704.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-65E4-D
Abstract
The dispersion curves of the phonons propagating in polycrystalline suspensions of hard-sphere colloids are measured by Brillouin scattering and calculated by band structure 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.