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 …

Topological semimetals have recently attracted extensive research interests as host
materials to condensed matter physics counterparts of Dirac and Weyl fermions originally …

We report a combined experimental and theoretical study of the candidate type-II Weyl
semimetal MoTe 2. Using laser-based angle-resolved photoemission, we resolve multiple …

In quantum field theory, Weyl fermions are relativistic particles that travel at the speed of light
and strictly obey the celebrated Lorentz symmetry. Their low-energy condensed matter …

The recent discovery of a Weyl semimetal in TaAs offers the first Weyl fermion observed in
nature and dramatically broadens the classification of topological phases. However, in TaAs …

The band structure of a type-II Weyl semimetal has pairs of electron and hole pockets that
coexist over a range of energies and touch at a topologically protected conical point. We …

We study the crystal symmetry of few-layer 1T′ MoTe2 using the polarization dependence
of the second harmonic generation (SHG) and Raman scattering. Bulk 1T′ MoTe2 is known …

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

Transition metal dichalcogenide MoTe2 is an important candidate for realizing the newly
predicted type-II Weyl fermions, for which the breaking of the inversion symmetry is a …

We performed a full mapping of the bulk electronic structure including the Fermi surface and
Fermi-velocity distribution v F (k F) of tungsten. The 4D spectral function ρ (EB; k) in the …