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 …

Over the past decade, topology has emerged as a major branch in broad areas of physics,
from atomic lattices to condensed matter. In particular, topology has received significant …

Weyl semimetals are topological materials whose electron quasiparticles obey the Weyl
equation. They possess many unusual properties that may lead to new applications. This is …

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 …

The discovery of magnetic topological semimetals has recently attracted significant attention
in the field of topology and thermoelectrics. In a thermoelectric device based on the Nernst …

Exotic massless fermionic excitations with nonzero Berry flux, other than the Dirac and Weyl
fermions, could exist in condensed matter systems under the protection of crystalline …

Insights from spectroscopic experiments led to the development of quantum mechanics as
the common theoretical framework for describing the physical and chemical properties of …

An axion insulator is a correlated topological phase, which is predicted to arise from the
formation of a charge-density wave in a Weyl semimetal,—that is, a material in which …

The focused ion beam (FIB) is a powerful tool for fabrication, modification, and
characterization of materials down to the nanoscale. Starting with the gallium FIB, which was …

Weyl semimetals (WSMs) exhibit phenomena such as Fermi arc surface states, pseudo-
gauge fields and quantum anomalies that arise from topological band degeneracy in …