11 citations · 11 across the 1 of their papers we have counts for
3 papers
From Hubbard bands to spin-polaron excitations in the doped Mott material NaCoO
Aljoscha Wilhelm, Frank Lechermann, Hartmut Hafermann +2
We investigate the excitation spectrum of strongly correlated sodium cobaltate within a realistic many-body description beyond dynamical mean-field theory (DMFT). At lower doping a…
Multi-orbital Kondo physics of Co in Cu hosts
Brigitte Surer, Matthias Troyer, Philipp Werner +4
We investigate the electronic structure of cobalt atoms on a copper surface and in a copper host by combining density functional calculations with a numerically exact continuous-ti…
Superperturbation theory on the real-axis
Christoph Jung, Aljoscha Wilhelm, Hartmut Hafermann +2
In this article we formulate the superperturbation theory for the Anderson impurity model on the real axis. The resulting impurity solver allows to evaluate dynamical quantities wi…