Abstract
A fully relativistic theory for magnetic Extended X-ray Absorption Fine Structure (MEXAFS) is presented that is based on the Dirac equation tbr spin-polarized systems and relativistic multiple scattering theory. This scheme not only allows one to treat spinpolarization and all relativistic effects on the same level but can also be applied to go beyond the standard muffin-tin construction by using non-spherical potentials. Results of applications to Fe3Pt are presented and discussed on the basis of the so-called sum-rules.
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