2.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR106 papers
- University of the Basque CountryES72 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR56 papers
- École PolytechniqueFR56 papers
- University of Rome Tor VergataIT56 papers
- UCLouvainBE48 papers
- Freie Universität BerlinDE42 papers
- University of LiègeBE42 papers
- University of JyväskyläFI41 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT31 papers
- IkerbasqueES29 papers
- Laboratoire des Solides IrradiésFR27 papers
62 papers · 1 filter
Electron-phonon-dominated charge-density-wave fluctuations in TiSe accessed by ultrafast nonequilibrium dynamics
Sotirios Fragkos, Hibiki Orio, Nina Girotto Erhardt +17
The complex phase diagram of 1T-TiSe2 consists of a charge density wave (CDW) below 200 K, and CDW fluctuations of still unknown origin at higher temperatures. Here, we use time-re…
The finite-difference parquet method: Enhanced electron-paramagnon scattering opens a pseudogap
Jae-Mo Lihm, Dominik Kiese, Seung-Sup B. Lee +1
We present the finite-difference parquet method that greatly improves the applicability and accuracy of two-particle correlation approaches to interacting electron systems. This me…
Kondo spectral functions at low-temperatures: A dynamical-exchange-correlation-field perspective
Zhen Zhao
We calculate the low-temperature spectral function of the symmetric single impurity Anderson model using a recently proposed dynamical exchange-correlation (xc) field formalism. Th…
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…
On the cuprates' universal waterfall feature: evidence of a momentum-driven crossover
Benjamin Bacq-Labreuil, Chafic Fawaz, Yuichi Okazaki +13
We study two related universal anomalies of the spectral function of cuprates, so called waterfall and high-energy kink features, by a combined cellular dynamical mean-field theory…
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…
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…
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…
Probing electron-phonon interactions away from the Fermi level with resonant inelastic x-ray scattering
C. D. Dashwood, A. Geondzhian, J. G. Vale +16
Interactions between electrons and lattice vibrations are responsible for a wide range of material properties and applications. Recently, there has been considerable interest in th…
Wigner localization in two and three dimensions: an \emph{ab initio} approach
Miguel Escobar Azor, Estefania Alves, Stefano Evangelisti +1
In this work we investigate the Wigner localization of two interacting electrons at very low density in two and three dimensions using the exact diagonalization of the many-body Ha…
Dynamical screening in SrVO: Inelastic x-ray scattering experiments and ab initio calculations
Kari Ruotsalainen, Alessandro Nicolaou, Christoph J. Sahle +5
We characterize experimentally and theoretically the high-energy dielectric screening properties of the prototypical correlated metal SrVO. The dynamical structure factor measu…
Intershell Interactions in Correlated Materials: A Slave Rotor Approach
Jakob Steinbauer, Silke Biermann
The treatment of intershell interactions remains a major challenge in the theoretical description of strongly correlated materials. Most previous approaches considered the influenc…
Subpicosecond metamagnetic phase transition driven by non-equilibrium electron dynamics
Federico Pressacco, Davide Sangalli, Vojtěch Uhlíř +13
Femtosecond light-induced phase transitions between different macroscopic orders provide the possibility to tune the functional properties of condensed matter on ultrafast timescal…
Correlated electronic structure and optical response of rare-earth-based semiconductors
Anna Galler, James Boust, Alain Demourgues +2
Simultaneous occurrence of the Mott and band gap in correlated semiconductors results in a complex optical response with the nature of the absorption edge difficult to resolve both…
Intrinsically weak magnetic anisotropy of cerium in potential hard-magnetic intermetallics
Anna Galler, Semih Ener, Fernando Maccari +5
Cerium-based intermetallics are currently attracting much interest as a possible alternative to existing high-performance magnets containing scarce heavy rare-earth elements. Howev…
Non-linear response in the cumulant expansion for core hole photoemission
Marilena Tzavala, Joshua J. Kas, Lucia Reining +1
Most currently used approximations for the one-particle Green's function G in the framework of many-body perturbation theory, such as Hedin's GW approximation or the cumulant GW+C…
Resonant inelastic x-ray scattering study of doping and temperature dependence of low-energy excitations in LaSrVO
Kari Ruotsalainen, Matteo Gatti, James M. Ablett +5
We present a temperature and doping dependent resonant inelastic X-ray scattering experiment at the V L and O K edges in LaSrVO for and . This…
Parameter-free hybrid functional based on an extended Hubbard model: DFT+U+V
Nicolas Tancogne-Dejean, Angel Rubio
In this article, we propose an energy functional at the level of DFT+U+V that allows us to compute self-consistently the values of the on-site interaction, Hubbard U and Hund J, as…
Nature of the Doping-Driven Metal-Insulator Transition in Correlated Electron Systems with strong Hund's Exchange Coupling
Jakob Steinbauer, Luca de' Medici, Silke Biermann
We study the doping-driven Mott metal-insulator transition for multi-orbital Hubbard models with Hund's exchange coupling at finite temperatures. As in the single-orbital Hubbard m…
A Wigner molecule at extremely low densities: a numerically exact study
Miguel Escobar Azor, Léa Brooke, Stefano Evangelisti +4
In this work we investigate Wigner localization at very low densities by means of the exact diagonalization of the Hamiltonian. This yields numerically exact results. In particular…
Magnetization density distribution of SrIrO: Deviation from a local picture
Jaehong Jeong, Benjamin Lenz, Arsen Gukasov +10
iridium oxides are of huge interest due to the potential for new quantum states driven by strong spin-orbit coupling. The strontium iridate SrIrO is particularly in th…
Predicting the conductance of strongly correlated molecules: the Kondo effect in perchlorotriphenylmethyl/Au junctions
W. H. Appelt, A. Droghetti, L. Chioncel +5
Stable organic radicals integrated into molecular junctions represent a practical realization of the single-orbital Anderson impurity model. Motivated by recent experiments for per…
Laser induced phase transition in epitaxial FeRh layers studied by pump-probe valence band photoemission
Federico Pressacco, Vojtěch Uhlíř, Matteo Gatti +7
We use time-resolved X-ray photoelectron spectroscopy to probe the electronic and magnetization dynamics in FeRh films after ultrafast laser excitations. We present experimental an…
Nonequilibrium Kondo-vs-RKKY Scenarios in Nanoclusters
S. Ydman, M. Hopjan, C. Verdozzi
Ultrafast manipulations of magnetic phases are eliciting increasing attention from the scientific community, because potentially relevant to the understanding of nonequilibrium pha…