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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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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2012, 2, 68—75. |
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Propagation of Acoustic Excitations Through Non-Ideal LС Superlattices
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V. V. Rumyantsev, S. A. Fedorov
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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
E-mail: rumyants@teor.fti.ac.donetsk.ua
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Abstract
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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