Among the more familiar examples of topological materials are topological insulators and topological superconductors. In this video, Zahid Hasan of Princeton University in the US introduces the theory behind the first known example of a topological metal – a semi-metal containing quasiparticles known as Weyl fermions.
This video is part of our 100 Second Science series, in which researchers give concise presentations covering the spectrum of physics.
