We have given a summary on our theoretical predictions of three kinds of topological
semimetals (TSMs), namely, Dirac semimetal (DSM), Weyl semimetal (WSM) and node-line …

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 recent breakthrough in the discovery of Weyl fermions in monopnictide semimetals
provides opportunities to explore the exotic properties of relativistic fermions in condensed …

Weyl nodes are topological objects in three-dimensional metals. Whereas the energy of the
lowest Landau band of a conventional Fermi pocket increases with magnetic field due to the …

Topological phases in electronic structures contain a new type of topology, called fragile,
which can arise, for example, when an elementary band representation (atomic limit band) …

We calculate the ac optical response to circularly polarized light of a Weyl semimetal (WSM)
with varying amounts of tilt of the Dirac cones. Both type-I and-II (overtilted) WSMs are …

Weyl nodes come in pairs of opposite chirality. For broken time reversal symmetry (TR) they
are displaced in momentum space by ${\bf Q} $ and the anomalous DC Hall conductivity …

Magnetic fields perturb the motion of charged quasi-particles in solids in different ways
including driving a quantum phase transition to a new state. Well-known examples include …

Recent discoveries of three dimensional (3D) topological Dirac semimetals (DSM) in Na3Bi
1, 2 and Cd3As2 3-7 and Weyl semimetals (WSM) in monopnictides TX (T= Ta/Nb, X= As/P) …

The chiral anomaly-induced negative magnetoresistance and non-trivial Berry phase are
two fundamental transport properties associated with the topological properties of Weyl …