27 citations · 46 across the 3 of their papers we have counts for
5 papers · 1 filter
Nonlocal Exchange Interactions in Strongly Correlated Electron Systems
Edin Kapetanović, Malte Schüler, Gerd Czycholl +1
We study the influence of ferromagnetic nonlocal exchange on correlated electrons in terms of a -Hubbard-Heisenberg model and address the interplay of on-site interaction in…
Bandwidth renormalization due to the intersite Coulomb interaction
Yann in 't Veld, Malte Schüler, Tim Wehling +2
The theory of correlated electrons is currently moving beyond the paradigmatic Hubbard , towards the investigation of intersite Coulomb interactions. Recent investigations have…
Electronic structure of single layer 1T-NbSe: interplay of lattice distortions, non-local exchange, and Mott-Hubbard correlations
E. Kamil, J. Berges, G. Schönhoff +4
Using ab-initio calculations we reveal the nature of the insulating phase recently found experimentally in monolayer 1T-NbSe. We find soft phonon modes in a large parts of the…
Realistic theory of electronic correlations in nanoscopic systems
M. Schüler, S. Barthel, T. Wehling +3
Nanostructures with open shell transition metal or molecular constituents host often strong electronic correlations and are highly sensitive to atomistic material details. This tut…
Variational exact diagonalization method for Anderson impurity models
M. Schüler, C. Renk, T. O. Wehling
We describe a variational approach to solving Anderson impurity models by means of exact diagonalization. Optimized parameters of a discretized auxiliary model are obtained on the…