The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

The concept of topological energy bands and their manifestations have been demonstrated
in condensed matter systems as a fantastic paradigm toward unprecedented physical …

Topological valley metamaterial in classical wave systems has shown great potential for
manipulating electromagnetic, acoustic, and elastic waves due to the defect-immune and …

Topological phononic crystals (PnCs) have attracted tremendous research attention in
recent years. A significant hallmark of these structures is that these crystals can support …

In recent years, layered FeOCl-type materials have attracted considerable attention for their
excellent thermoelectric properties. The electronic structure and thermoelectric properties of …

Mechanical metamaterials with low-frequency and broadband bandgaps have great
potential for elastic wave control. Inspired by the ancient window mullions, a novel plate-type …

Phononic crystals (PCs) can modulate an incident acoustic wave to provide subwavelength
microparticles with stable and flexible manipulation. However, fixed artificial structures of the …

Mechanical metamaterials designed using triply periodic minimal surfaces (TPMS) are
notable for their mathematically defined topologies that yield specific and impressive …

In this paper, we theoretically study the Faraday (FR) rotation effect excited by a transverse-
magnetic (TM)-polarized wave passing through a bulk Weyl semimetal (WSM). Results show …

Topological insulators that exhibit localized states at the edges or interference regions have
been extensively investigated. Among these, waterborne acoustic topological interface …