Phononic band gap and wave propagation on multiferroic-based acoustic metamaterials

被引：0
|
作者：
Palaz, Selami [1 ]
Ozer, Zafer [2 ]
Oltulu, Oral [1 ]
Mamedov, Amirullah M. [3 ,4 ]
Ozbay, E. [3 ]
机构：
[1] Harran Univ, Dept Phys, Sanliurfa, Turkey
[2] Mersin Univ, Mersin Vocat Sch, Elect Technol, TR-33335 Mersin, Turkey
[3] Bilkent Univ, Nanotechnol Res Ctr NANOTAM, Ankara, Turkey
[4] Baku State Univ, Int Sci Ctr, Baku, Azerbaijan
来源：
FERROELECTRICS | 2019年 / 539卷 / 01期
关键词：
Multiferroic; phononic crystal; metamaterial; equi-frequency surface; group velocity;
D O I：
10.1080/00150193.2019.1570016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present work, the acoustic band structure of a two-dimensional (2D) phononic crystal containing a multiferroic and liquid were investigated by the plane-wave-expansion method. 2D PnC with triangular and honeycomb lattices composed of LiCu2O4 cylindrical rods embedded in the seawater matrix are studied to find the existence of stop bands for the waves of certain energy. Phononic band diagram omega=omega(k) for a 2D PC, in which nondimensional frequencies omega a/2 pi c (c-velocity of wave) were plotted versus the wavevector k along the -X-M- path in the Brillouin zone show few stop bands in the frequency range between 10 and 110 kHz.
引用
收藏
页码：84 / 88
页数：5
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