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 …

Weyl and Dirac semimetals are three-dimensional phases of matter with gapless electronic
excitations that are protected by topology and symmetry. As three-dimensional analogs of …

Weyl semimetals are crystalline solids that host emergent relativistic Weyl fermions and
have characteristic surface Fermi-arcs in their electronic structure. Weyl semimetals with …

In recent days, study of topological Weyl semimetals have become an active branch of
physics and materials science because they led to realization of the Weyl fermions and …

Weyl fermions are massless chiral fermions that play an important role in quantum field
theory but have never been observed as fundamental particles. A Weyl semimetal is an …

Topological semimetals can support one-dimensional Fermi lines or zero-dimensional Weyl
points in momentum space, where the valence and conduction bands touch. While the …

Abstract Three-dimensional (3D) topologicalWeyl semimetals (TWSs) represent a state of
quantum matter with unusual electronic structures that resemble both a '3D graphene'and a …

Three types of fermions play a fundamental role in our understanding of nature: Dirac,
Majorana and Weyl. Whereas Dirac fermions have been known for decades, the latter two …

Topological Weyl semimetal (TWS), a new state of quantum matter, has sparked enormous
research interest recently. Possessing unique Weyl fermions in the bulk and Fermi arcs on …

A Weyl semimetal is a new state of matter that hosts Weyl fermions as emergent
quasiparticles and admits a topological classification that protects Fermi arc surface states …