Abstract 1 T-TaS2 undergoes successive phase transitions upon cooling and eventually
enters an insulating state of mysterious origin. Some consider this state to be a band …

If a material with an odd number of electrons per unit-cell is insulating, Mott localisation may
be invoked as an explanation. This is widely accepted for the layered compound 1 T-TaS2 …

We study the interplay of crystal field splitting and Hund coupling in a two-orbital model
which captures the essential physics of systems with two electrons or holes in the eg shell …

We generalize the rotationally invariant formulation of the slave-boson formalism to
multiorbital models, with arbitrary interactions, crystal fields, and multiplet structure. This …

We consider a minimal model to investigate the metal-insulator transition in VO 2. We adopt
a Hubbard model with two orbitals per unit cell, which captures the competition between …

Metastable phases present a promising route to expand the functionality of complex
materials. Of particular interest are light-induced metastable phases that are inaccessible …

We investigate strong electron-electron correlation effects on two-dimensional van der
Waals materials Nb 3 X 8 (X= Cl, Br, and I). We find that the monolayers Nb 3 X 8 are ideal …

Electron-phonon-driven charge-density waves can in some circumstances allow electronic
correlations to become predominant, driving a system into a Mott insulating state. New …

Using a general analytical continuation scheme for cluster dynamical mean-field
calculations, we analyze real-frequency self-energies, momentum-resolved spectral …

The ground-state phase diagram of the half-filled repulsive Hubbard model in a bilayer is
investigated using cluster dynamical mean-field theory. For weak to intermediate values of …