216 citations · 707 across the 14 of their papers we have counts for
14 papers
Dynamics of photo-doped charge transfer insulators
Denis Golež, Lewin Boehnke, Martin Eckstein +1
We study the dynamics of charge-transfer insulators after photo-excitation using the three-band Emery model and a nonequilibrium extension of Hartree-Fock+EDMFT and GW+EDMFT. While…
Multi-orbital nature of the spin fluctuations in SrRuO
Lewin Boehnke, Philipp Werner, Frank Lechermann
The spin susceptibility of strongly correlated SrRuO is known to display a rich structure in reciprocal space, with a prominent peak at =. It is sti…
Multitier self-consistent +EDMFT
Fredrik Nilsson, Lewin Boehnke, Philipp Werner +1
We discuss a parameter-free and computationally efficient ab initio simulation approach for moderately and strongly correlated materials, the multitier self-consistent +EDMFT m…
Nonequilibrium GW+EDMFT: Antiscreening and inverted populations from nonlocal correlations
Denis Golez, Lewin Boehnke, Hugo Strand +2
We study the dynamics of screening in photo-doped Mott insulators with long-ranged interactions using a nonequilibrium implementation of the plus extended dynamical mean field…
Influence of Fock exchange in combined many-body perturbation and dynamical mean field theory
Thomas Ayral, Silke Biermann, Philipp Werner +1
In electronic systems with long-range Coulomb interaction, the nonlocal Fock exchange term has a band-widening effect. While this effect is included in combined many-body perturbat…
When strong correlations become weak: Consistent merging of and DMFT
Lewin Boehnke, Fredrik Nilsson, Ferdi Aryasetiawan +1
The cubic perovskite SrVO is generally considered to be a prototype strongly correlated metal with a characteristic three-peak structure of the -electron spectral function,…
Hidden spin-orbital hexagonal ordering induced by strong correlations in LiVS
Lewin Boehnke, Alexander I. Lichtenstein, Mikhail I. Katsnelson +1
We present a first-principles many-body analysis of multi-orbital lattice susceptibilities in the metallic phase of the quasi-twodimensional compound LiVS. We base this on adva…
Electron correlation and magnetism at the LaAlO/SrTiO interface: A DFT+DMFT investigation
Frank Lechermann, Lewin Boehnke, Daniel Grieger +1
We shed light on the interplay between structure and many-body effects relevant for itinerant ferromagnetism in LaAlO/SrTiO heterostructures. The realistic correlated elect…
Getting back to Na_xCoO_2: spectral and thermoelectric properties
Lewin Boehnke, Frank Lechermann
Sodium cobaltate Na_xCoO_2 as dopable strongly correlated layered material with a triangular sublattice still poses a challenging problem in condensed matter. The intriguing interp…
Formation of orbital-selective electron states in LaTiO/SrTiO superlattices
Frank Lechermann, Lewin Boehnke, Daniel Grieger
The interface electronic structure of correlated LaTiO/SrTiO superlattices is investigated by means of the charge self-consistent combination of the local density approxima…
Orthogonal Polynomial Representation of Imaginary-Time Green's Functions
Lewin Boehnke, Hartmut Hafermann, Michel Ferrero +2
We study the expansion of single-particle and two-particle imaginary-time Matsubara Green's functions of quantum impurity models in the basis of Legendre orthogonal polynomials. We…
Competing orders in NaCoO from strong correlations on a two-particle level
Lewin Boehnke, Frank Lechermann
Based on dynamical mean-field theory with a continuous-time quantum Monte-Carlo impurity solver, static as well as dynamic spin and charge susceptibilites for the phase diagram of…
Considerable non-local electronic correlations in strongly doped NaCoO
Christoph Piefke, Lewin Boehnke, Antoine Georges +1
The puzzling electronic correlation effects in the sodium cobaltate system are studied by means of the combination of density functional theory and the rotationally invariant slave…
Electronic correlations in vanadium chalcogenides: BaVSe3 versus BaVS3
Daniel Grieger, Lewin Boehnke, Frank Lechermann
Albeit structurally and electronically very similar, at low temperature the quasi-one-dimensional vanadium sulfide BaVS3 shows a metal-to-insulator transition via the appearance of…