Light-induced vortex currents and magnetic fields in semiconductors
Light-induced generation of the vortex (closed inside the sample) electric currents and magnetic fields is predicted for semiconductors. Vortex currents are generated by the forces separating non-equilibrium charge carriers of different type under the condition of inhomogeneity of the light/sample system as a whole along the illumination surface. Combining various profiles of the semiconductor inhomogeneity and light intensity distribution allows the realization of a wide variety of currents and magnetic field configurations (toroidal, circular, etc) controllable by light and external fields.