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 …

The study of phononic materials and structures is an emerging discipline that lies at the
crossroads of vibration and acoustics engineering and condensed matter physics. Broadly …

Metamaterials with artificially designed architectures are increasingly considered as new
paradigmatic material systems with unusual physical properties. Here, we report a class of …

Earthquakes represent one of the most catastrophic natural events affecting mankind. At
present, a universally accepted risk mitigation strategy for seismic events remains to be …

Supercritical CO2 (s-CO2) operated in a closed-loop Brayton cycle offers the potential of
higher cycle efficiency versus superheated or supercritical steam cycles at temperatures …

Phononic crystals are composite materials made of periodic distributions of inclusions
embedded in a matrix. Due to their periodic structure, these materials may exhibit under …

Controlling thermal transport has become relevant in recent years. Traditionally, this control
has been achieved by tuning the scattering of phonons by including various types of …

The book provides a comprehensive presentation of the topic of phononic and sonic
crystals, including acoustic and elastic wave propagation in homogeneous and periodic …

One of the outstanding challenges in phononic crystals and acoustic metamaterials
development is the ability to tune their performance without requiring structural …

Artificial designed metamaterials have attracted widespread attention because of its unique
lattice structure and special physical properties. In this work, a chiral auxetic metamaterial …