Topological phases can not only be protected by internal symmetries (eg, time-reversal
symmetry), but also by crystalline symmetries, such as reflection or rotation symmetry …

While the topological classification of insulators, semimetals, and superconductors in terms
of nonspatial symmetries is well understood, less is known about topological states …

The unusual surface states of topological semimetals have attracted a lot of attention.
Recently, we showed [Proc. Natl. Acad. Sci. USA 113, 8648 (2016) PNASA6 0027-8424 …

Topological materials with both insulating and semimetal phases can be protected by
crystalline (eg, mirror) symmetry. The insulating phase, called a topological crystalline …

摘要 Topological quantum materials, such as topological insulators, topological semimetals,
and topological superconductors, are the research focus of modern condensed matter …

The recently identified hexagonal non-polar phase of KZnBi, an archetypal topological
semimetal, has been found to cohost superconductivity on the surface. We propose that …

The topology of the electronic structure of a crystal is manifested in its surface states.
Recently, a distinct topological state has been proposed in metals or semimetals whose spin …

In general, the stability of a band crossing point indicates the presence of a quantized
topological number associated with it. In particular, the recent discovery of three …

We propose and characterize a new Z 2 class of topological semimetals with a vanishing
spin-orbit interaction. The proposed topological semimetals are characterized by the …

Topological semimetals exhibit band crossings near the Fermi energy, which are protected
by the nontrivial topological character of the wave functions. In many cases, these …