Light–matter interaction in 2D and topological materials provides a fascinating control knob
for inducing emergent, non-equilibrium properties and achieving new functionalities in the …

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 …

Topological materials discovery has evolved at a rapid pace over the past 15 years following
the identification of the first nonmagnetic topological insulators (TIs), topological crystalline …

Weyl semimetals are topological materials whose electron quasiparticles obey the Weyl
equation. They possess many unusual properties that may lead to new applications. This is …

As a quantum material, Weyl semimetal has a series of electronic-band-structure features,
including Weyl points with left and right chirality and corresponding Berry curvature, which …

Materials in which quantum mechanical effects lead to novel properties on the macroscopic
scale are of interest both fundamentally and for applications. For such quantum materials …

This year, researchers have been on the lookout for real materials with one-nodal, two-nodal
(two-NS), and three-nodal surface phonons. However, materials with two-NS phonons have …

Magnetic Weyl semimetals attract considerable interest not only for their topological
quantum phenomena but also as an emerging materials class for realizing quantum …

In three-dimensional (3D) crystals, emergent particles arise when two or multiple bands
contact and form degeneracy (band crossing) in the Brillouin zone. Recently a complete …

Measuring magnetic response from spin and current is of fundamental interest in condensed
matter physics. Negatively charged nitrogen-vacancy (NV^−) centers in diamond are …