Dynamic change in the photoconductivity sign in n-Ge in intense submillimeter radiation
Ganichev S. D., Emel'yanov S. A., Yaroshetskii I. D.
A dynamic change in the sign of the intraband photoconductivity has been observed in я-Ge: The sign of the photoconductivity changes during the exciting light pulse. The effect is linked with a change caused in the momentum relaxation mechanism by a heating of the electron gas.