Absence of quantization in the circular photogalvanic effect in disordered chiral Weyl semimetals
Document Type
Article
Publication Date
7-1-2024
Abstract
The circularly polarized photogalvanic effect (CPGE) is studied in chiral Weyl semimetals with short-range quenched disorder. Without disorder, the topological properties of chiral Weyl semimetals lead to quantization of the CPGE, which is a second-order optical response. Using a combination of diagrammatic perturbation theory in the continuum and exact numerical calculations via the kernel polynomial method on a lattice model, we show that disorder perturbatively destabilizes the quantization of the CPGE.
Publication Source (Journal or Book title)
Physical Review B
Recommended Citation
Wu, A., Guerci, D., Fu, Y., Wilson, J., & Pixley, J. (2024). Absence of quantization in the circular photogalvanic effect in disordered chiral Weyl semimetals. Physical Review B, 110 (1) https://doi.org/10.1103/PhysRevB.110.014201