THEORETICAL-ANALYSIS OF THE MAGNETIC CIRCULAR-DICHROISM IN THE 2P3D AND 2P4D X-RAY-EMISSION OF GD

The 2p3d and 2p4d x-ray emission spectral shapes have been calculated using a theoretical description of spin-polarized 2p photoemission and atomic multiplet calculations of the 2p3d and 2p4d radiative decay. E mphasis is given to the use of circular-polarized x rays for the excit ation process. Good agreement with experiment is found and all visible experimental structures can be explained. It is shown that because of weak multiplet effects in the intermediate state, it is possible to u se the incoherent, two-step model. The angle between the emitted x ray s and the magnetization is able to affect the magnetic circular dichro ism (MCD) spectral shape observed, while the angle between the inciden t x ray and the magnetization only affects the intensity of the MCD.