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Phononic band gap and wave propagation on multiferroic-based acoustic metamaterials
2019
Ferroelectrics (Print)
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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 LiCu 2 O 4 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 x¼x(k) for a 2D PC, in which nondimensional frequencies xa/2pc (c-velocity of wave) were
doi:10.1080/00150193.2019.1570016
fatcat:n4glehqoibbufbkttxlk2y4e5i