Nature Communications (Mar 2022)
Ultrafast photothermoelectric effect in Dirac semimetallic Cd3As2 revealed by terahertz emission
Abstract
Many topological semimetals are excellent thermoelectric materials, but previous studies were limited to steady-state properties. Here, the authors observe a transient thermoelectric response in Cd3As2 by detecting the resulting THz emission, with an enhanced response when a small magnetic field is applied.