Transient photoconductivity in EuSe

Transient photoconductivity measurements in EuSe have been made in order to distinguish between mobility and lifetime effects in steady state photoconductivity. The results show that in the paramagnetic region the decay time is constant while the mobility is thermally activated. The data are explained by a magnetic impurity state model including both charged and neutral defects. In this model both hopping and quasi-thermally activated band conduction may occur. © 1970.