Los puntos clave no están disponibles para este artículo en este momento.
The theory and the experimental characteristics of the bulk photovoltaic effect in ferroelectric and piezoelectric crystals first observed at the Institute of Crystallography have been reviewed. I dedicate this review to the memory of B.K. Vainshtein whose help in performing these works was really inestimable.
V. M. Fridkin (Sun,) studied this question.