  Spin orbit coupling in heavy metals allows conversion of unpolarized light
into an open-circuit voltage. We experimentally prove that this photo-spin
voltaic effect is due to photo-excitation of carriers in the proximized layer
and can exist for light in the visible range. While carrying out the
experiment, we discovered that, in closed-circuit conditions, the anisotropic
magnetoresistance of the proximized metal is a function of the light intensity.
We name this effect photo-magnetoresistance. A magneto-transport model is
presented that describes the change of magnetoresistance as a function of the
light intensity.
