  Rectified electric current induced by irradiating light, so-called
photocurrent, is an established phenomenon in optoelectronic physics. In this
paper, we present a comprehensive classification of the photocurrent response
arising from the parity violation in bulk systems. We clarify the contrasting
role of $\mathcal{T}$- and $\mathcal{PT}$-symmetries and consequently find a
new type of photocurrent phenomena characteristic of parity-violating magnets,
intrinsic Fermi surface effect and gyration current. Especially, the gyration
current is induced by the circularly-polarized light and it is the counterpart
of the shift current caused by the linearly-polarized light. This photocurrent
adds a new functionality of materials studied in various fields of condensed
matter physics such as multiferroics and spintronics. A list of materials is
provided. Furthermore, we show that the gyration current is strongly enhanced
by topologically nontrivial band dispersion. On the basis of the microscopic
analysis of Dirac models, we demonstrate the divergent photocurrent response
and elucidate the importance of tilting of Dirac cones.
