Results 61 to 70 of about 297,991 (240)

Exact nonadditive kinetic potentials for embedded density functional theory [PDF]

open access: yes, 2010
We describe an embedded density functional theory (DFT) protocol in which the nonadditive kinetic energy component of the embedding potential is treated exactly.
Ananth, Nandini   +3 more
core   +1 more source

Systematic pseudopotentials from reference eigenvalue sets for DFT calculations: Pseudopotential files

open access: yesData in Brief, 2015
We present in this article a pseudopotential (PP) database for DFT calculations in the context of the SIESTA code [1–3]. Comprehensive optimized PPs in two formats (psf files and input files for ATM program) are provided for 20 chemical elements for LDA ...
Pablo Rivero   +8 more
doaj   +1 more source

Predicting electronic structures at any length scale with machine learning

open access: yesnpj Computational Materials, 2023
The properties of electrons in matter are of fundamental importance. They give rise to virtually all material properties and determine the physics at play in objects ranging from semiconductor devices to the interior of giant gas planets.
Lenz Fiedler   +7 more
doaj   +1 more source

Assessment of Various Density Functional Theory Methods for Finding Accurate Structures of Actinide Complexes

open access: yesMolecules, 2022
Density functional theory (DFT) is a widely used computational method for predicting the physical and chemical properties of metals and organometals. As the number of electrons and orbitals in an atom increases, DFT calculations for actinide complexes ...
Youngjin Kwon   +2 more
doaj   +1 more source

DFT Calculation for Adatom Adsorption on Graphene

open access: yes, 2011
Graphene is well-known to be two-dimensional material made of carbon atoms. Graphene is the basic material to form nanotube, fullerene and graphite. Graphene is a substance that attracts attention not only as parts of the nanocarbons but also for its own interesting electronic and mechanic properties ( T. Ando, A. K. Geim et.al, K.S.
Kengo Nakada, Akira Ishii
openaire   +4 more sources

Relativistic DFT calculation and their effect on the accuracy of results

open access: yesBook of Proceedings, 2023
This study explores the significance of density functional theory (DFT) calculations with relativistic effects for two ethylenediaminetetraacetate (edta) type complexes: trans(O5)-[M(eddadp)]- (M = Rh3+, Co3+). Relativistic effects affect the electronic structure of a molecule and, thus, its chemical and spectroscopic properties. With the use of scalar
Radovanovic, Marko D.   +5 more
openaire   +3 more sources

Density functional theory calculations for cathode materials of proton-conducting solid oxide fuel cells: A mini-review

open access: yesElectrochemistry Communications, 2021
Density functional theory (DFT) calculations have been widely used to investigate insights for electrochemical materials, but its application in proton-conducting solid oxide fuel cells has just started a few years ago.
Zhiruo Tao, Xi Xu, Lei Bi
doaj   +1 more source

Origin of layer dependence in band structures of two-dimensional materials

open access: yes, 2017
We study the origin of layer dependence in band structures of two-dimensional materials. We find that the layer dependence, at the density functional theory (DFT) level, is a result of quantum confinement and the non-linearity of the exchange-correlation
Jain, Manish, Naik, Mit H.
core   +1 more source

Theoretical and experimental investigation of magnetotransport in iron chalcogenides

open access: yesScience and Technology of Advanced Materials, 2012
We explore the electronic, transport and thermoelectric properties of Fe1+ySexTe1−x compounds to clarify the mechanisms of superconductivity in Fe-based compounds.
Federico Caglieris, Fabio Ricci, Gianrico Lamura, Albert Martinelli, A Palenzona, Ilaria Pallecchi, Alberto Sala, Gianni Profeta and Marina Putti
doaj   +1 more source

Medium-sized Sin- (n=14-20) clusters: a combined study of photoelectron spectroscopy and DFT calculations

open access: yes, 2018
Size-selected anionic silicon clusters, Sin- (n=14-20), have been investigated by photoelectron spectroscopy and density functional theory (DFT) calculations.
Chen, Maodu   +10 more
core   +1 more source

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