Circular photovoltaic effect in the ferroelectric Pb5Ge3O11
Lemanov V. V., Esayan S. Kh., Maksimov A. Yu., Gabrielyan V. T.
A circular photovoltaic effect has been observed in the gyrotropic crystal Pb5Ge3On. The photovoltaic current changes sign because of the action of an electric field; this is a consequence of the enantiomorphous transformation of the right-hand crystal into left-hand crystal. The circular photovoltaic coefficient has been determined.