Spectral Function of Ferromagnetic3dMetals: A Self-ConsistentLSDA+DMFTApproach Combined with the One-Step Model of Photoemission

J. Braun, J. Minár, H. Ebert, M. I. Katsnelson, A. I. Lichtenstein
2006 Physical Review Letters  
The electronic structure of ferromagnetic 3d-transition metals in the vicinity of the Fermi level is dominated by the spin-polarized d bands. Experimentally, this energy region can be probed in detail by means of angle-resolved ultraviolet photoemission and inverse photoemission. In several earlier studies the measured spectra were described either within a single-particle approach based on the local spindensity approximation including matrix-element effects within the so-called one-step model
more » ... led one-step model or by sophisticated many-body approaches neglecting these effects. In our analysis we combine for the first time correlation with matrix-element effects to achieve an improved interpretation of photoemission data from ferromagnetic nickel.
doi:10.1103/physrevlett.97.227601 pmid:17155842 fatcat:pcvp5ng6freydgf6w3dyy4mx2m