Metamaterials (MMs), which include phononic crystals (PCs) as a particular type, exhibit
anomalous wave propagation properties through artificial design of topologies or lattice …

In solid state physics, a bandgap (BG) refers to a range of energies where no electronic
states can exist. This concept was extended to classical waves, spawning the entire fields of …

A novel hierarchical re-entrant honeycomb metamaterial is proposed by integrating the re-
entrant honeycomb (RH) with square unit cell and named as square re-entrant honeycomb …

Embedding mechanical logic into soft robotics, microelectromechanical systems (MEMS),
and robotic materials can greatly improve their functional capacity. However, such logical …

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 …

Complex engineering applications have created an increasing demand for engineering
structures or materials with multiple desired properties. In this context, metamaterials …

The advancement in electromagnetic metamaterials, which commenced three decades ago,
experienced a rapid transformation into acoustic and elastic systems in the forms of …

In the last two decades, seismic metamaterials have attracted significant attention of
researchers because of the characteristic of the bandgap which can be used to control …

A novel metamaterial beam with embedded quasi-zero-stiffness (QZS) resonator is
proposed to realize wave attenuation in very low-frequency band gaps. The configuration of …

Many advanced physical properties can be realized by using well-designed acoustic
metamaterial (AM) structures, which have significant application value in engineering. In …