Topological acoustics is an emerging field that lies at the intersection of condensed matter
physics, mechanical structural design and acoustics engineering. It explores the design and …

Polaritons are hybrid excitations of matter and photons. In recent years, polaritons in van der
Waals nanomaterials—known as van der Waals polaritons—have shown great promise to …

The fractional quantum anomalous Hall effect (FQAHE), the analogue of the fractional
quantum Hall effect at zero magnetic field, is predicted to exist in topological flat bands …

Rhombohedral-stacked multilayer graphene hosts a pair of flat bands touching at zero
energy, which should give rise to correlated electron phenomena that can be tuned further …

Interactions among charge carriers in graphene can lead to the spontaneous breaking of
multiple degeneracies. When increasing the number of graphene layers following …

The constituent particles of matter can arrange themselves in various ways, giving rise to
emergent phenomena that can be surprisingly rich and often cannot be understood by …

Ferroic orders describe spontaneous polarization of spin, charge and lattice degrees of
freedom in materials. Materials exhibiting multiple ferroic orders, known as multiferroics …

Quantum cascade lasers are compact, electrically pumped light sources in the
technologically important mid-infrared and terahertz region of the electromagnetic spectrum …

Polaritons, originating from the interactions between photons and material excitations, have
attracted attention because of their strong field compression and deeply subdiffractional …

The transformation of digital computers from bulky machines to portable systems has been
enabled by new materials and advanced processing technologies that allow ultrahigh …