Results 21 to 30 of about 3,319,169 (244)

Optical Signatures of Periodic Charge Distribution in a Mott-like Correlated Insulator State

open access: yesPhysical Review X, 2021
The elementary optical excitations in two-dimensional semiconductors hosting itinerant electrons are attractive and repulsive polarons—excitons that are dynamically screened by electrons.
Yuya Shimazaki   +9 more
doaj   +1 more source

Strong correlation effects in vanadium oxide films

open access: yesФізика і хімія твердого тіла, 2022
In the present work the metal-insulator transition in doubly orbitally degenerated model of quasi-two- dimensional material based on V2O3 film, in which a crucial role is played by on-site Coulomb interaction and correlated hopping of electrons, has been
Yuriy Skorenkyy   +2 more
doaj   +1 more source

The effects of strong correlations on the band structure of Ag_8SnSe_6 argyrodite

open access: yesCondensed Matter Physics, 2016
The electronic energy band spectra, as well as partial and total density of electronic states of the crystal argyrodite Ag_8SnSe_6 have been evaluated within the projector augmented waves (PAW) approach by means of the ABINIT code.
S.V. Syrotyuk   +3 more
doaj   +1 more source

Anomalous Transport Behavior in Quantum Magnets

open access: yesCondensed Matter, 2018
Transport behavior that is characterized by a low-temperature electrical resistivity that displays a power law behavior ( ρ ( T → 0 ) ∝ T s ) with an exponent of s < 2 is commonly observed in magnetic materials in both ...
Dietrich Belitz   +1 more
doaj   +1 more source

Low-Frequency Dynamics of Strongly Correlated Electrons in (BEDT-TTF)2X Studied by Fluctuation Spectroscopy

open access: yesCrystals, 2018
Fluctuation spectroscopy measurements of quasi-two-dimensional organic charge-transfer salts (BEDT-TTF) 2 X are reviewed. In the past decade, the method has served as a new approach for studying the low-frequency dynamics of strongly correlated ...
Jens Müller, Tatjana Thomas
doaj   +1 more source

On strongly correlated electrons in metals

open access: yesJournal of Superconductivity and Novel Magnetism, 2021
A procedure, dedicated to superconductivity, is extended to study the properties of interacting electrons in normal metals in the thermodynamic limit. Each independent-electron band is shown to split into two correlated-electron bands. Excellent agreement is achieved with Bethe's wave-function for the one-dimensional Hubbard model.
openaire   +2 more sources

Recent Developments in the Field of the Metal-Insulator Transition in Two Dimensions

open access: yesApplied Sciences, 2019
We review the latest developments in the field of the metal-insulator transition in strongly-correlated two-dimensional electron systems. Particular attention is given to recent discoveries of a sliding quantum electron solid and interaction-induced ...
Alexander A. Shashkin   +1 more
doaj   +1 more source

Strongly correlated electrons and neutron scattering [PDF]

open access: yesJournal of Physics and Chemistry of Solids, 1999
8 pages, 3 figures, Proceedings of 7th ISSP International Symposium "Frontiers in Neutron Scattering Research" (To appear in J. Phys. Chem. Solids (1999))
openaire   +2 more sources

Further Development of iCIPT2 for Strongly Correlated Electrons [PDF]

open access: yesJournal of Chemical Theory and Computation, 2021
The efficiency of the recently proposed iCIPT2 [iterative configuration interaction (iCI) with selection and second-order perturbation theory (PT2); J. Chem. Theory Comput. 16, 2296 (2020)] for strongly correlated electrons is further enhanced (by up to 20x) by using (1) a new ranking criterion for configuration selection, (2) a new particle-hole ...
Ning Zhang   +2 more
openaire   +3 more sources

Complexity in Strongly Correlated Electronic Systems [PDF]

open access: yesScience, 2005
A wide variety of experimental results and theoretical investigations in recent years have convincingly demonstrated that several transition metal oxides and other materials have dominant states that are not spatially homogeneous. This occurs in cases in which several physical interactions—spin, charge, lattice, and/or orbital—are simultaneously active.
openaire   +3 more sources

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