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 …

Topological materials have become the focus of intense research in recent years, since they
exhibit fundamentally new physical phenomena with potential applications for novel devices …

The first-principles band theory paradigm has been a key player not only in the process of
discovering new classes of topologically interesting materials, but also for identifying salient …

Topological materials discovery has evolved at a rapid pace over the past 15 years following
the identification of the first nonmagnetic topological insulators (TIs), topological crystalline …

In a Dirac semimetal, each Dirac node is resolved into two Weyl nodes with opposite
“handedness” or chirality. The two chiral populations do not mix. However, in parallel electric …

Weyl semimetal is the three-dimensional analog of graphene. According to quantum field
theory, the appearance of Weyl points near the Fermi level will cause novel transport …

We theoretically study three-dimensional topological semimetals (TSMs) with nodal lines
protected by crystalline symmetries. Compared to TSMs with point nodes, eg, Weyl …

Based on first-principles calculation and effective model analysis, we propose that the cubic
antiperovskite material Cu 3 PdN can host a three-dimensional (3D) topological node-line …

Dirac and Weyl semimetals are 3D analogues of graphene in which crystalline symmetry
protects the nodes against gap formation,,. Na3Bi and Cd3As2 were predicted to be Dirac …