Semiclassical theory of nonlinear magneto-optical responses with applications to topological Dirac/Weyl semimetals
Semiclassical theory of nonlinear magneto-optical responses with applications to topological Dirac/Weyl semimetals
We study nonlinear magneto-optical responses of metals by a semiclassical Boltzmann equation approach. We derive general formulas for linear and second-order nonlinear optical effects in the presence of magnetic fields that include both the Berry curvature and the orbital magnetic moment. Applied to Weyl fermions, the semiclassical approach (i) captures …