Quantum materials hosting Weyl fermions have opened a new era of research in condensed
matter physics. First proposed in 1929 in the context of particle physics, Weyl fermions have …

Topological insulators and topological semimetals are both new classes of quantum
materials, which are characterized by surface states induced by the topology of the bulk …

Three-dimensional (3D) topological semimetals represent a new class of topological
matters. The study of this family of materials has been at the frontiers of condensed matter …

Weyl semimetals are conductors whose low-energy bulk excitations are Weyl fermions,
whereas their surfaces possess metallic Fermi arc surface states. These Fermi arc surface …

Topology, a mathematical concept, has recently become a popular and truly
transdisciplinary topic encompassing condensed matter physics, solid state chemistry, and …

Time reversal symmetry (TRS) protects the metallic surface modes of topological insulators
(TIs). The transport signature of such surface states is a plateau that arrests the exponential …

The realization of Dirac and Weyl physics in solids has made topological materials one of
the main focuses of condensed matter physics. Recently, the topic of topological nodal line …

Abstract Topological Weyl semimetals (TWSs) represent a novel state of topological
quantum matter,,, which not only possesses Weyl fermions (massless chiral particles that …

Very recently, the half-metallic compound Co 3 Sn 2 S 2 was proposed to be a magnetic
Weyl semimetal (WSM) with Weyl points only 60 meV above the Fermi level EF. Owing to the …

The most recognizable feature of graphene's electronic spectrum is its Dirac point, around
which interesting phenomena tend to cluster. At low temperatures, the intrinsic behaviour in …