RELATIVISTIC BAND-STRUCTURE OF DISORDERED MAGNETIC-ALLOYS

The concept of the Bloch spectral function (BSF) has been extended to deal with disordered magnetic alloys with their electronic structure d escribed using the spin polarized relativistic Korringa-Kohn-Rostoker Coherent Potential Approximation (SPR-KKR-CPA) formalism. Applications are presented for the alloy system fcc-FexNi1-x that shows a rather w ell defined dispersion relation and Fermi surface. Additional spin dec omposition of the BSF clearly reveals the spin hybridisation due to sp in-orbit coupling as well as its anisotropy in k-space. (C) 1997 Elsev ier Science Ltd.