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TT: Fachverband Tiefe Temperaturen

TT 79: Correlated Electrons - Poster Session

TT 79.72: Poster

Mittwoch, 2. April 2014, 15:00–19:00, P2

Information entropies in Fe and Ni: Numerical evidence for electronic correlation in Momentum space — •Wilhelm Hans Appelt^1,2, Diana Benea³, and Liviu Chioncel^1,2 — ¹Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany — ²Augsburg Center for Innovative Technologies, University of Augsburg — ³Faculty of Physics, Babes-Bolyai University, Kogalniceanustr 1, Ro-400084 Cluj-Napoca, Romania

Various momentum-space properties are computed for Fe and Ni within the framework of a combined Density Functional and Dynamical Mean Field theory. We asses the effects of electron correlation in momentum space by making a comparison with the results obtained from the Local Density Approximation. We study the information entropy using the one-electron density in momentum space along different directions and as a function of local Coulomb parameter U.