Phononic crystals (PnCs) control the transport of sound and heat similar to the control of
electric currents by semiconductors and metals or light by photonic crystals. Basic and …

Phononic crystals (PnCs) are capable of manipulating the flow of elastic energy through
their periodic structures and have emerged as a promising field in the last two decades …

The design and engineering of hybrid materials exhibiting tailored phononic band gaps are
fundamentally relevant to innovative material technologies in areas ranging from acoustics …

Phononic materials are artificial composites with unprecedented abilities to control acoustic
waves in solids. Their performance is mainly governed by their architecture, determining …

Moulding the flow of phononic waves in three-dimensional (3D) space plays a critical role in
controlling the sound and thermal properties of matter. To this end, 3D phononic crystals …

Phononic materials exhibit mechanical properties that alter the propagation of acoustic
waves and are widely useful for metamaterials. To fabricate acoustic materials with …

The making of composites has served as a working principle of achieving material
properties beyond those of their homogeneous counterparts. The classical effective-medium …

A material with anisotropic elastic mechanical properties and a direction-dependent
hypersonic band gap is fabricated using ac electric field-directed convective self-assembly …

In this paper, an alpha finite element method (αFEM) is formulated to study the propagation
of elastic waves in periodic crystals. Using the simple triangular elements, the αFEM with …

Bragg band gaps of phononic crystals generally, but not always, open at Brillouin zone
boundaries. The commonly accepted explanation stems from the empty lattice model …