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Quantum Crystallography: Exploring Electron Density and Interactions [PDF]

open access: yesStructural Dynamics
Quantum Crystallography (QC) is an evolving field that integrates quantum mechanics with crystallographic data analysis to achieve a more accurate and detailed description of molecular and solid-state structures.
Sylwia Pawledzio, Xioping Wang
doaj   +2 more sources

Image super-resolution inspired electron density prediction [PDF]

open access: yesNature Communications
Predicting ground-state electron densities of chemical systems has recently received growing attention in machine learning quantum chemistry, given their fundamental importance as highlighted by the Hohenberg-Kohn theorem.
Chenghan Li   +3 more
doaj   +2 more sources

Revealing disorder parameter and deformation electron density using electron diffraction [PDF]

open access: yesNature Communications
Local disorders of lattice, charge, orbital, and spin perturbate the electron density distribution in materials, profoundly influencing their properties.
Weixiao Lin   +9 more
doaj   +2 more sources

Molecular Electron Density Theory: A Modern View of Reactivity in Organic Chemistry

open access: yesMolecules, 2016
A new theory for the study of the reactivity in Organic Chemistry, named Molecular Electron Density Theory (MEDT), is proposed herein. MEDT is based on the idea that while the electron density distribution at the ground state is responsible for physical ...
Luis R. Domingo
doaj   +3 more sources

The Uppsala Electron-Density Server [PDF]

open access: yesActa Crystallographica Section D: Biological Crystallography, 2004
The Uppsala Electron Density Server (EDS; http://eds.bmc.uu.se/) is a web-based facility that provides access to electron-density maps and statistics concerning the fit of crystal structures and their maps. Maps are available for approximately 87% of the crystallographic Protein Data Bank (PDB) entries for which structure factors have been deposited ...
Gérard J Kleywegt   +2 more
exaly   +3 more sources

Ionospheric Electron Density Model by Electron Density Grid Deep Neural Network (EDG-DNN)

open access: yesAtmosphere, 2023
Electron density (or electron concentration) is a critical metric for characterizing the ionosphere’s mobility. Shortwave technologies, remote sensing systems, and satellite communications—all rely on precise estimations of electron density in the ...
Zhou Chen   +6 more
doaj   +1 more source

Visualization of electronic density [PDF]

open access: yesComputer Physics Communications, 2015
The spatial volume occupied by an atom depends on its electronic density. Although this density can only be evaluated exactly for hydrogen-like atoms, there are many excellent algorithms and packages to calculate it numerically for other materials.
Bastien Grosso   +5 more
openaire   +2 more sources

Auroral E-region electron density gradients measured [PDF]

open access: yesAnnales Geophysicae, 2000
In the theory of E-region plasma instabilities, the ambient electric field and electron density gradient are both included in the same dispersion relation as the key parameters that provide the energy for the generation and growth of electrostatic ...
C. Haldoupis, K. Schlegel, G. Hussey
doaj   +1 more source

Direct imaging of electron density with a scanning transmission electron microscope

open access: yesNature Communications, 2023
Recent studies of secondary electron (SE) emission in scanning transmission electron microscopes suggest that material’s properties such as electrical conductivity, connectivity, and work function can be probed with atomic scale resolution using a ...
Ondrej Dyck   +8 more
doaj   +1 more source

Measurement of electron temperature (Te) and electron density (ne) of ZnO RF plasma

open access: yesJournal of Kufa-Physics, 2022
In this study, the ratio method between the two spectral lines was used to calculate the electron temperature (Te) and the density (ne) of argon gas for a zinc oxide (ZnO) cathode using the spectroscopic method.
Mustafa Haydar   +1 more
doaj   +1 more source

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