161 citations · 2.1k across the 37 of their papers we have counts for
5 papers · 1 filter
On the separability of dynamical and non-local correlations in three dimensions
T. Schäfer, A. Toschi, Jan M. Tomczak
While second-order phase transitions always cause strong non-local fluctuations, their effect on spectral properties crucially depends on the dimensionality. For the important case…
QSGW+DMFT: an electronic structure scheme for the iron pnictides and beyond
Jan M. Tomczak
While in strongly correlated materials one often focuses on local electronic correlations, the influence of non-local exchange and correlation effects beyond band-theory can be per…
Protected Fe valence in quasi-two dimensional -FeSi
W. Miiller, J. M. Tomczak, J. W. Simonson +3
We report the first comprehensive study of the high temperature form (-phase) of iron disilicide. Measurements of the magnetic susceptibility, magnetization, heat capacity and r…
Dynamical correlations and screened exchange on the experimental bench: spectral properties of the cobalt pnictide BaCo2As2
Ambroise van Roekeghem, Thomas Ayral, Jan M. Tomczak +7
Understanding the Fermi surface and low-energy excitations of iron or cobalt pnictides is crucial for assessing electronic instabilities such as magnetic or superconducting states.…
Electronic correlations in FeGa and the effect of hole doping on its magnetic properties
M. B. Gamza, J. M. Tomczak, C. Brown +3
We investigate signatures of electronic correlations in the narrow-gap semiconductor FeGa by means of electrical resistivity and thermodynamic measurements performed on single…