Nonlinear theory of combined resonance and polarization of nuclei in semiconductors with the CdS lattice

The nonequilibrium statistical operator method is used to develop a theory of combined resonance in semiconducting crystals with the CdS lattice that is nonlinear in an external field. A system of stationary energy balance equations is set up and solved for the kinetic and spin degrees of freedom of conduction electrons interacting with nuclear spins in the nonlinear regime of combined resonance. An analysis of the solutions reveals that new schemes of dynamical polarization of nuclei arise under these conditions.