  The magnetic ratchet effect has been studied in phosphorene by the use of the
Boltzmann kinetic equation that is a semi-classical approach. The Hamiltonian
of phosphorene in a steady parallel magnetic field is derived using the
tight-binding model. We consider the effect of the magnetic field on
non--linear dynamics in the presence of an ac laser field and spatial inversion
asymmetry. We have shown that for anisotropic 2D materials and phosphorene, the
ratchet current has the response to three different light polarizations:
linearly polarized light, circularly polarized light, and unpolarized light.
