Raman scattering from massive Dirac fermions in two dimensions

In recent years, Raman spectroscopy has been recognized as a valuable characterization tool for two dimensional (2D) materials. Although some of these materials are topological, the signatures of electronic band topology in Raman scattering have remained largely unexplored. In this talk, we will present a theoretical calculation on how the electronic Chern number influences the Raman tensor elements for ideal 2D massive Dirac fermions. We will conclude by extrapolating our findings to real 2D Dirac materials and commenting on the experimental challenges.