Topological semimetals (TSMs) are characterized by bulk band crossings in their electronic
structures, which are expected to give rise to gapless electronic excitations and topological …

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 …

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 …

Chiral crystals are materials with a lattice structure that has a well-defined handedness due
to the lack of inversion, mirror or other roto-inversion symmetries. Although it has been …

A Dirac nodal-line semimetal phase, which represents a new quantum state of topological
materials, has been experimentally realized only in a few systems, including PbTaSe 2, PtSn …

The generation of photocurrent in an ideal two-dimensional Dirac spectrum is symmetry
forbidden. In sharp contrast, we show that three-dimensional Weyl semimetals can …

Topological semimetals are well known for the linear energy band dispersion in the bulk
state and topologically protected surface state with arc-like Fermi surface. The angle …

Magnetoresistance (MR), the change of a material's electrical resistance in response to an
applied magnetic field, is a technologically important property that has been the topic of …

Magnetic Weyl semimetals have novel transport phenomena related to pairs of Weyl nodes
in the band structure. Although the existence of Weyl fermions is expected in various oxides …

Topological semimetals represent a new class of quantum materials hosting Dirac/Weyl
fermions. The essential properties of topological fermions can be revealed by quantum …