INTERPRETATION OF X-RAY CIRCULAR-DICHROISM - MULTIPLE-SCATTERING THEORY APPROACH

The relationship between x-ray-absorption magnetic circular dichroism (MCD) and the magnetic properties of a metal is investigated within th e framework of spin-polarized relativistic multiple-scattering theory. The MCD sum rules discovered by Thole et al. which relate the energy- integrated MCD intensities to the spin and orbital magnetic moments of the solid, are rederived. Several rules that relate a MCD spectrum to the l-projected spin and orbital magnetization densities of empty sta tes of the solid, are also obtained. The application of these rules is discussed. [S0163-1829(98)01113-8].