Topological Semimetals — New Directions

The field of topological semimetals (TSMs), which includes Dirac and Weyl semimetals, has grown rapidly in recent years. About a decade after the discovery of graphene, the first 3D analogs, or 3D Dirac semimetals, were discovered and reports of their ultra-high electronic mobility and extremely large magnetoresistance quickly followed. It took one year before the first Weyl semimetals, which contain the massless and chiral Weyl fermion, were found.

In this special issue, we focus on new developments in the field of TSMs. This includes the prediction of new types of TSMs, the development of new materials or metamaterials that are TSMs, magnetic TSMs and the exploration of their applications, including their potential as catalysts, theromoelectrics or optical switches.

Guest Editors: Leslie M. Schoop, Robert Cava, Xi Dai, and Ron Ilan