Quantitative theory of magnetic interactions in solids
This review addresses the method of explicit calculations of interatomic exchange
interactions of magnetic materials. This involves exchange mechanisms normally referred to …
interactions of magnetic materials. This involves exchange mechanisms normally referred to …
Charge density wave ordering in NdNiO2: effects of multiorbital nonlocal correlations
In this work, we investigate collective electronic fluctuations and, in particular, the possibility
of the charge density wave ordering in an infinite-layer NdNiO2. We perform advanced many …
of the charge density wave ordering in an infinite-layer NdNiO2. We perform advanced many …
Can Orbital-Selective Néel Transitions Survive Strong Nonlocal Electronic Correlations?
EA Stepanov, S Biermann - Physical Review Letters, 2024 - APS
Spin-or orbital-selective behaviors in correlated electron materials offer rich promise for
spintronics or orbitronics phenomena and applications deriving from them. Strong local …
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
Understanding competing instabilities in systems with correlated fermions remains one of
the holy grails of modern condensed matter physics. Among the fermionic lattice models …
the holy grails of modern condensed matter physics. Among the fermionic lattice models …
Interconnected Renormalization of Hubbard Bands and Green's Function Zeros in Mott Insulators Induced by Strong Magnetic Fluctuations
EA Stepanov, M Chatzieleftheriou, N Wagner… - arXiv preprint arXiv …, 2024 - arxiv.org
We analyze the role of spatial electronic correlations and, in particular, of the magnetic
fluctuations in Mott insulators. A half-filled Hubbard model is solved at large strength of the …
fluctuations in Mott insulators. A half-filled Hubbard model is solved at large strength of the …
Multichannel fluctuating field approach to competing instabilities in interacting electronic systems
Systems with strong electronic Coulomb correlations often display rich phase diagrams
exhibiting different ordered phases involving spin, charge, or orbital degrees of freedom …
exhibiting different ordered phases involving spin, charge, or orbital degrees of freedom …
Local and nonlocal electronic correlations at the metal-insulator transition in the Hubbard model in two dimensions
M Chatzieleftheriou, S Biermann… - arXiv preprint arXiv …, 2023 - arxiv.org
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 real …
regime is a key missing ingredient to our understanding of metal-insulator transitions in real …
Local and Nonlocal Electronic Correlations at the Metal-Insulator Transition in the Two-Dimensional Hubbard Model
M Chatzieleftheriou, S Biermann, EA Stepanov - Physical Review Letters, 2024 - APS
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 real …
regime is a key missing ingredient to our understanding of metal-insulator transitions in real …
Atomristor Mott Theory of Sn Adatom Adlayer on a Si Surface
L Craco, EF Chagas, SS Carara, B Freelon - 2024 - uh-ir.tdl.org
We use a combination of density functional theory (DFT) and dynamical mean field theory
(DMFT) to unveil orbital field-induced electronic structure reconstruction of the atomic Sn …
(DMFT) to unveil orbital field-induced electronic structure reconstruction of the atomic Sn …
Signatures of a Charge Ice State in the Doped Mott Insulator NbCl
EA Stepanov - arXiv preprint arXiv:2405.19114, 2024 - arxiv.org
The interplay between strong electronic correlations and the inherent frustration of certain
lattice geometries is a common mechanism for the formation of nontrivial states of matter. In …
lattice geometries is a common mechanism for the formation of nontrivial states of matter. In …