We have observed magnetic linear dichroism in soft x-ray core-level ph
otoemission from ferromagnets: With linearly polarized light, the Fe 3
p lineshape depends strongly on the relative orientation of the light
electric field vector E and the magnetization vector M. For s-polarize
d light and collinear orientation of E and M the core level line shows
a single peak. With E perpendicular-to M a double-peaked line is obse
rved. We attribute this change to the MLD effect as predicted recently
1.