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Abstract: We analyze the phonon spectra of periodic structures formed bytwo-dimensional mixtures of dipolar colloidal particles. These mixtures displayan enormous variety of complex ordered configurations J. Fornleitner {\it etal.}, Soft Matter {\bf 4}, 480 2008, allowing for the systematicinvestigation of the ensuing phonon spectra and the control of phononic gaps.We show how the shape of the phonon bands and the number and width of thephonon gaps can be controlled by changing the susceptibility ratio, theconcentration and the mass ratio between the two components.



Autor: J. Fornleitner, G. Kahl, C.N. Likos

Fuente: https://arxiv.org/







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