Lossless conduction at the edges
Tuesday, May 26, 2020 - 11:50
in Physics & Chemistry
Atomically thin layers of the semimetal tungsten ditelluride conduct electricity losslessly along narrow, one-dimensional channels at the crystal edges. The material is therefore a second-order topological insulator. By obtaining experimental proof of this behavior, physicists have expanded the pool of candidate materials for topological superconductivity.