Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 19: Poster Session: Correlated Electrons 1

TT 19.66: Poster

Montag, 20. März 2017, 15:00–19:00, P2-EG

Non-equilibrium steady states of the ionic Hubbard model in strong electric fields — •Yusuf Mohammed and Martin Eckstein — Max Planck Research Department for Structural Dynamics, Hamburg, Germany

We investigate the transport properties and non-equilibrium steady state phases of the dissipative ionic Hubbard model driven by an electric field. In the ionic Hubbard model, metallic behavior is enhanced by a competition of band insulating and Mott insulating behavior. The system is analyzed by means of the inhomogeneous dynamical mean-field theory (DMFT), using the iterated perturbation theory as impurity solver. The steady states of this model are accessed directly through the Keldysh contour formalism. We report results at half-filling for different interaction strengths, temperatures and geometries.