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MA: Fachverband Magnetismus
MA 38: Transport: Spintronics, Magnetotransport 1 (jointly with HL&MA)
MA 38.13: Talk
Thursday, March 14, 2013, 12:45–13:00, H18
Electronic correlations in magnetic heterostructures. — •Liviu Chioncel1,2 and Junya Otsuki2,3 — 1Augsburg Center for Innovative Technologies, University of Augsburg, D-86135 Augsburg, Germany — 2Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany — 3Department of Physics, Tohoku University, Sendai, Japan
Heterostructures that contain semiconducting and magnetic monolayers offer the possibility to adjust simultaneously band-gap and magnetic properties. Dynamical Mean Field Theory is a necessary theoretical tool to address physical properties of multilayer systems containing correlated electrons. Here we solve a simplified Hubbard model within DMFT using the recently developed CT-QMC solver, for several magnetic monolayers embedded into semiconducting/insulating host. Our approach is relevant for the Cr/Mn-doped semiconducting heterostructures. We discuss possible half-metallic properties in these systems in the presence of dynamic correlations at finite temperatures.