41 citations · 141 across the 9 of their papers we have counts for
7 papers · 1 filter
Hund flat band in a frustrated spinel oxide
Dongjin Oh, Alexander Hampel, Joshua P. Wakefield +26
Electronic flat bands associated with quenched kinetic energy and heavy electron mass have attracted great interest for promoting strong electronic correlations and emergent phenom…
LiV2O4: Hund-Assisted Orbital-Selective Mottness
Martin Grundner, Fabian B. Kugler, Olivier Parcollet +3
We show that the remarkably small Fermi-liquid coherence scale and large effective mass observed in LiVO are due to the proximity of a Hund-assisted orbital-selective Mott…
Complex Time Evolution in Tensor Networks
M. Grundner, P. Westhoff, F. B. Kugler +2
Real-time calculations in tensor networks are strongly limited in time by entanglement growth, restricting the achievable frequency resolution of Green's functions, spectral functi…
Stable bipolarons in open quantum systems
Mattia Moroder, Martin Grundner, François Damanet +5
Recent advances in numerical methods significantly pushed forward the understanding of electrons coupled to quantized lattice vibrations. At this stage, it becomes increasingly imp…
Formation of CuO sublattices by suppression of interlattice correlations in tetragonal CuO
Max Bramberger, Benjamin Bacq-Labreuil, Martin Grundner +4
We investigate the tetragonal phase of the binary transition metal oxide CuO (t-CuO) within the context of cellular dynamical mean-field theory. Due to its strong antiferromagnetic…
BaOsO: A Hund's metal in the presence of strong spin-orbit coupling
Max Bramberger, Jernej Mravlje, Martin Grundner +2
We investigate the 5d transition metal oxide BaOsO within a combination of density functional theory (DFT) and dynamical mean-field theory (DMFT), using a matrix-product-state…
SrMoO and SrRuO: Disentangling the Roles of Hund's and van Hove Physics
Jonathan Karp, Max Bramberger, Martin Grundner +3
SrMoO is isostructural to the unconventional superconductor SrRuO but with two electrons instead of two holes in the Mo/Ru-t orbitals. Both materials are Hun…