Tutorial VI: Phonons, Lattice Expansion, and Band-gap Renormalizationpdfauthor
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Anisotropic lattice expansion of three-dimensional colloidal crystals and its impact on hypersonic phonon band gaps.
We report anisotropic expansion of self-assembled colloidal polystyrene-poly(dimethylsiloxane) crystals and its impact on the phonon band structure at hypersonic frequencies. The structural expansion was achieved by a multistep infiltration-polymerization process. Such a process expands the interplanar lattice distance 17% after 8 cycles whereas the in-plane distance remains unaffected. The var...
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تاریخ انتشار 2014