Results 11 to 20 of about 297,991 (240)

Pseudopotentials for high-throughput DFT calculations [PDF]

open access: yesComputational Materials Science, 2014
The increasing use of high-throughput density-functional theory (DFT) calculations in the computational design and optimization of materials requires the availability of a comprehensive set of soft and transferable pseudopotentials. Here we present design criteria and testing results for a new open-source "GBRV" ultrasoft pseudopotential library that ...
Karin M. Rabe   +3 more
openaire   +3 more sources

DFT Calculation of Carbon-Doped TiO2 Nanocomposites

open access: yesMaterials, 2023
Titanium dioxide (TiO2) has been proven to be an excellent material for mitigating the continuous impact of elevated carbon dioxide concentrations. Carbon doping has emerged as a promising strategy to enhance the CO2 reduction performance of TiO2. In this study, we investigated the effects of carbon doping on TiO2 using density functional theory (DFT ...
Kim Robert Gustavsen   +5 more
openaire   +3 more sources

Multi‐Space Excitation as an Alternative to the Landauer Picture for Nonequilibrium Quantum Transport

open access: yesAdvanced Science, 2020
While the Landauer viewpoint constitutes a modern basis to understand nanoscale electronic transport and to realize first‐principles implementations of the nonequilibrium Green's function (NEGF) formalism, seeking an alternative picture can be beneficial
Juho Lee, Han Seul Kim, Yong‐Hoon Kim
doaj   +1 more source

Dirac Cone Formation in Single-Component Molecular Conductors Based on Metal Dithiolene Complexes

open access: yesMagnetochemistry, 2023
Single-component molecular conductors exhibit a strong connection to the Dirac electron system. The formation of Dirac cones in single-component molecular conductors relies on (1) the crossing of HOMO and LUMO bands and (2) the presence of nodes in the ...
Reizo Kato, Takao Tsumuraya
doaj   +1 more source

DFT calculations of Cu doped TiO2 ferromagnetic study [PDF]

open access: yesE3S Web of Conferences, 2023
There is still some controversy about the room-temperature ferromagnetism generated by transition metal-doped TiO2 and its magnetic generation. In this paper, the samples with different doping ratio were prepared to verify the magnetism of doped TiO2 ...
Wu Biao, Wu Jiang
doaj   +1 more source

Calculation of the Jahn-Teller parameters with DFT [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
In this review, ? density functional theory (DFT) procedure is presented to calculate the Jahn?Teller (JT) parameters in a non-empirical way, which does not depend on the system at hand. Moreover, the intrinsic distortion path (IDP) model that gives further insight into the mechanism of the distortion is presented.
Matija Zlatar, Maja Gruden
openaire   +5 more sources

High-throughput calculations of charged point defect properties with semi-local density functional theory—performance benchmarks for materials screening applications

open access: yesnpj Computational Materials, 2023
Calculations of point defect energetics with Density Functional Theory (DFT) can provide valuable insight into several optoelectronic, thermodynamic, and kinetic properties. These calculations commonly use methods ranging from semi-local functionals with
Danny Broberg   +12 more
doaj   +1 more source

Calculating NMR parameters in aluminophosphates : evaluation of dispersion correction schemes [PDF]

open access: yes, 2014
Periodic density functional theory (DFT) calculations have recently emerged as a popular tool for assigning solid-state nuclear magnetic resonance (NMR) spectra. However, in order for the calculations to yield accurate results, accurate structural models
Ashbrook, Sharon E.   +3 more
core   +2 more sources

Getting excited: Challenges in quantum-classical studies of excitons in polymeric systems [PDF]

open access: yes, 2016
A combination of classical molecular dynamics (MM/MD) and quantum chemical calculations based on the density functional theory (DFT) was performed to describe conformational properties of diphenylethyne (DPE), methylated-DPE and poly para phenylene ...
Bagheri, Behnaz   +2 more
core   +4 more sources

Density functional theory embedding for correlated wavefunctions: Improved methods for open-shell systems and transition metal complexes [PDF]

open access: yes, 2012
Density functional theory (DFT) embedding provides a formally exact framework for interfacing correlated wave-function theory (WFT) methods with lower-level descriptions of electronic structure.
Frederick R. Manby   +4 more
core   +1 more source

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