40 citations · 234 across the 13 of their papers we have counts for
12 papers · 1 filter
Double Occupancy and Magnetic Susceptibility of the Anderson Impurity Model out of Equilibrium
A. Dirks, S. Schmitt, J. E. Han +3
We use different numerical approaches to calculate the double occupancy and mag- netic susceptibility as a function of a bias voltage in an Anderson impurity model. Specifically, w…
Extension of dynamical mean-field theory by inclusion of nonlocal two-site correlations with variable distance
Torben Jabben, Norbert Grewe, Sebastian Schmitt
We present a novel approximation scheme for the treatment of strongly correlated electrons in arbitrary crystal lattices. The approach extends the well-known dynamical mean field t…
Spectral properties of the two-impurity Anderson model with varying distance and various interactions
Torben Jabben, Norbert Grewe, Sebastian Schmitt
We present a novel approximation for two interacting magnetic impurities immersed into a noninteracting metallic host. The scheme is based on direct perturbation theory in the hybr…
Itinerant and local-moment magnetism in strongly correlated electron systems
Sebastian Schmitt, Norbert Grewe, Torben Jabben
Detailed analysis of the magnetic properties of the Hubbard model within dynamical mean-field theory (DMFT) is presented. Using a RPA-like decoupling of two-particle propagators we…
Kinks in the electronic dispersion of the Hubbard model away from half filling
Patrick Grete, Sebastian Schmitt, Carsten Raas +2
We study kinks in the electronic dispersion of a generic strongly correlated system by dynamic mean-field theory (DMFT). The focus is on doped systems away from particle-hole symme…
Comment on "Scaling feature of magnetic field induced Kondo-peak splittings"
Sebastian Schmitt, Frithjof B. Anders
In a recent work Zhang and coworkers (PRB 82, 075111 (2010)) studied the Zeeman splitting of the Kondo resonance for the single impurity Anderson model in a finite magnetic field $…