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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2012, 2, 68—75.

Propagation of Acoustic Excitations Through Non-Ideal LС Superlattices

V. V. Rumyantsev, S. A. Fedorov

Author affiliations
Donetsk Institute for Physics and Engineering named after O.O. Galkin National Academy of Sciences of Ukraine
83114, Ukraine. Donetsk-114, R.Luxembourg str., 72

The peculiarities of propagation of acoustic excitations through a non-ideal 1D superlattice are studied within the virtual crystal approximation. The dependence of the lowest for-bidden acoustic zone width of the described structure on concentration of impurity liquid crystal layers in two sublattices is numerically evaluated for longitudinal and transverse excitations.

Keywords: acoustic excitations, non-ideal 1D superlattice, LC-layer, forbidden photon zone

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