Results 11 to 20 of about 305,413 (295)

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 ...
Garrity, Kevin F.   +3 more
openaire   +4 more sources

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

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

Modelling Catalyst Surfaces Using DFT Cluster Calculations [PDF]

open access: yesInternational Journal of Molecular Sciences, 2009
We review our recent theoretical DFT cluster studies of a variety of industrially relevant catalysts such as TiO2, γ-Al2O3, V2O5-WO3-TiO2 and Ni/Al2O3. Aspects of the metal oxide surface structure and the stability and structure of metal clusters on the support are discussed as well as the reactivity of surfaces, including their behaviour upon ...
Czekaj, Izabela   +2 more
openaire   +2 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

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

Relativistic Four-Component DFT Calculations of Vibrational Frequencies [PDF]

open access: yesThe Journal of Physical Chemistry A, 2021
We investigate the effect of relativity on harmonic vibrational frequencies. Density functional theory (DFT) calculations using the four-component Dirac-Coulomb Hamiltonian have been performed for 15 hydrides (H2X, X = O, S, Se, Te, Po; XH3, X = N, P, As, Sb, Bi; and XH4, X = C, Si, Ge, Sn, Pb) as well as for HC≡CPbH3.
Katarzyna Jakubowska   +2 more
openaire   +3 more sources

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

A variational polaron self-interaction corrected total-energy functional for charge excitations in wide-band gap insulators [PDF]

open access: yes, 2015
We conduct a detailed investigation of the polaron self-interaction (pSI) error in standard approximations to the exchange-correlation (XC) functional within density-functional theory (DFT).
Erhart, Paul   +2 more
core   +2 more sources

A flexible and scalable scheme for mixing computed formation energies from different levels of theory

open access: yesnpj Computational Materials, 2022
Computational materials discovery efforts are enabled by large databases of properties derived from high-throughput density functional theory (DFT), which now contain millions of calculations at the generalized gradient approximation (GGA) level of ...
Ryan S. Kingsbury   +8 more
doaj   +1 more source

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