Magneto-photogalvanic effects in noncentrosymmetric crystals

The theory of magneto-photogalvanic effects in noncentrosymmetric crystals is presented. For linearly-polarized radiation the magnetophotocurrent is caused not only by the photo-Hall mechanism but also by the magnetic-field-induced asymmetry of the photoexcitation rate. The circular magnetophotocurrent can be induced both in optically active and inactive cristals without a symmetry centre. Time-dependent magnetophotocurrents are discussed in connection with the light-induced renormalization of free carrier energy. Finally the results of experimental studies are briefly reviewed.