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TT: Fachverband Tiefe Temperaturen

TT 79: Correlated Electrons - Poster Session

TT 79.18: Poster

Wednesday, April 2, 2014, 15:00–19:00, P2

Signatures of electronic correlations in half-metals — •Markus Dutschke¹, Liviu Chioncel^1,2, and Junya Otsuki^1,3 — 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, D-86135 Augsburg, Germany — ³Department of Physics, Tohoku University, Sendai 980-8578, Japan

The distinctive feature of the electronic correlations in half-metals is the existence of Non-quasiparticle states, within the half-metallic gap, predicted previously in model as well as realistic LDA+DMFT calculations. We revisit this problem considering a simplified Hubbard model solved in DMFT using the CT-QMC impurity solver. In the same time we present an implementation of the hybridization expansion quantum impurity solver, based on the segment representation.