183 citations · 1.2k across the 40 of their papers we have counts for
38 papers
Local and nonlocal electronic correlations at the metal-insulator transition in the Hubbard model in two dimensions
Maria Chatzieleftheriou, Silke Biermann, Evgeny A. Stepanov
Elucidating the physics of the single-orbital Hubbard model in its intermediate coupling regime is a key missing ingredient to our understanding of metal-insulator transitions in r…
Charge Density Wave Ordering in NdNiO: Effects of Multiorbital Nonlocal Correlations
Evgeny A. Stepanov, Matteo Vandelli, Alexander I. Lichtenstein +1
In this work, we investigate collective electronic fluctuations and, in particular, the possibility of the charge density wave ordering in an infinite-layer NdNiO. We perform a…
Can Orbital-Selective Néel Transitions Survive Strong Nonlocal Electronic Correlations?
Evgeny A. Stepanov, Silke Biermann
Spin- or orbital-selective behaviours in correlated electron materials offer rich promise for spintronics or orbitronics phenomena and applications deriving from them. Strong local…
Coexistence of -wave superconductivity and phase separation in the half-filled extended Hubbard model with attractive interactions
E. Linnér, C. Dutreix, S. Biermann +1
Understanding competing instabilities in systems with correlated fermions remains one of the holy grails of modern condensed matter physics. Among the fermionic lattice models used…
Doping-dependent charge- and spin-density wave orderings in a monolayer of Pb adatoms on Si(111)
Matteo Vandelli, Anna Galler, Angel Rubio +3
In this work we computed the phase diagram as a function of temperature and doping for a system of lead adatoms allocated periodically on a silicon (111) surface. This Si(111):Pb m…
Multi-channel fluctuating field approach to competing instabilities in interacting electronic systems
E. Linnér, A. I. Lichtenstein, S. Biermann +1
Systems with strong electronic Coulomb correlations often display rich phase diagrams exhibiting different ordered phases involving spin, charge, or orbital degrees of freedom. The…