3p fine structure of ferromagnetic iron and cobalt from photoemission with linearly polarized light

Linear magnetic dichroism in the angular distribution of the photoelectrons is observed in angular resolved photoemission experiments with linearly polarized light on 3p core levels of the ferromagnetic transition metals. The measured magnetic asymmetry is strictly related to the one observed in photoemission with circularly polarized radiation. By peak fitting the experimental dichroic core level spectra and by calculating the relevant multipoles, one can resolve the fine structure of the 3p core hole states of ferromagnetic Fe and Co and obtain the m sub j ordering of the sublevels. It is shown that the energy order for the 3p hole levels of Fe and Co is reversed for the J = 3/2 and J = 1/2 multiplets, and that spin-selected lineshapes can be derived from the analysis and compared with spin-resolved photoemission data.