Kinetics of instabilities in electron-hold drops under microwave radiation

Under constant optical pumping and microwave excitation a large electron-hole drop (EHD) can heat considerably. The ratio TcarrierTlattice depends on the intensity and frequency of the microwave field and on the drop radius. The rate equations governing the growth of a large EHD are solved under these conditions. It is shown that above both optical-pump and microwave-field thresholds the drop heats up to temperatures exceeding the critical temperature. An instability in the system is thus created and spikes in the electrical conductivity are expected.