Regensburg 2019 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 2: Correlated Electrons: Electronic Structure Calculations and Other Theoretical Topics

TT 2.6: Vortrag

Montag, 1. April 2019, 10:45–11:00, H7

Charge Reconstruction in Magnetic Heterostructures — •Andreas Weh¹, Liviu Chioncel¹, Ulrich Eckern¹, and Junya Otsuki² — ¹Institute of Physics, University of Augsburg, Augsburg, Germany — ²Department of Physics, Tohoku University, Sendai, Japan

We present a self-consistent method for using real-space dynamical mean-field theory (r-DMFT) to address local and intersite Coulomb interactions in heterostructures. The local in-plane many-body problem is solved using the continuous-time quantum Monte Carlo approach for the Hubbard model in hybridization expansion (CT-Hyb). The mean-field interlayer Coulomb potential generates a classical electrostatic problem which is solved by employing the Poisson equation for the multilayered geometry. Using this method we study half-metallic heterostructures consisting of coupled layers of single-band Hubbard models.