Dispersion properties of two-dimensional phonon crystals with a hexagonal structure

被引：0
|
作者：
S. P. Nikitenkova
A. I. Potapov
机构：
[1] Nizhni Novgorod State Technical University,
来源：
Acoustical Physics | 2010年 / 56卷
关键词：
Phase Velocity; Acoustical Physic; Optical Phonon; Dispersion Property; Phonon Crystal;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Acoustic and optical properties of two-dimensional phonon crystals with a hexagonal symmetry are described. Differential-difference equations describing plane oscillations of a two-dimensional lattice of material structures are derived in a harmonic approximation, and dispersion dependences of acoustic and optical phonons are calculated. Branches of optical oscillations and intervals of forbidden frequencies are shown to appear when a lattice consists of two types of atoms.
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页码：909 / 918
页数：9
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