Free-carrier dynamics in Au${}_2$Pb probed by optical conductivity measurements

R. Kemmler, R. Hübner, A. Löhle +5

We measured the optical reflectivity of the Dirac material Au${}_2$Pb in a broad frequency range (30 - 48 000 cm${}^{-1}$) for temperatures between 9 and 300 K. The optical conductiv…