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BH-DFTB/DFT calculations for iron clusters [PDF]

open access: yesAIP Advances, 2016
We present a study on the structural, electronic, and magnetic properties of Fen(n  =  2  −  20) clusters by performing density functional tight binding (DFTB) calculations within a basin hopping (BH) global optimization search followed by density ...
Abdurrahman Aktürk, Ali Sebetci
doaj   +3 more sources

Polydiphenylenephthalide: Optical Spectroscopy and DFT Calculations

open access: yesMedžiagotyra, 2011
The results of spectral and luminescent studies of polydiphenylenphthalide (PDF) solutions and thin films as well as molecule structure and its energy levels DFT modelling within the Gaussian-03 software package are presented. It is shown that structural
Alexander KUKHTA   +2 more
doaj   +2 more sources

The dark side of DFT based transport calculations [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2013
We compare the conductance of an interacting ring of six lattice sites threaded by flux $\pi$ in a two terminal setup with the conductance of the corresponding Kohn-Sham particles.
Schmitteckert, Peter
core   +4 more sources

Supercell Band Calculations and Correlation for High-𝑇𝐶 Copper Oxide Superconductors [PDF]

open access: yesAdvances in Condensed Matter Physics, 2010
First principle band calculations based on local versions of density functional theory (DFT), together with results from nearly free-electron models, can describe many typical but unusual properties of the high-𝑇𝐶 copper oxides.
T. Jarlborg
doaj   +4 more sources

Materials Database from All-electron Hybrid Functional DFT Calculations [PDF]

open access: yesScientific Data
Materials databases built from calculations based on density functional approximations play an important role in the discovery of materials with improved properties. Most databases thus constructed rely on the generalized gradient approximation (GGA) for
Akhil S. Nair   +2 more
doaj   +2 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

Understanding the Interaction of glycine amino acid with graphene: An Alternative Theoretical Approach Based on Density Functional Theory [PDF]

open access: yesJournal of Chemistry Letters, 2020
The present work utilizes density functional theory (DFT) calculations to investigate the interaction of glycine amino acid with graphene. Quantum chemical calculations by DFT provide detailed geometrical parameters, electronic properties and the ...
maedeh kamel, kamal Mohammadifard
doaj   +1 more source

A density-functional-theory-based and machine-learning-accelerated hybrid method for intricate system catalysis

open access: yesMaterials Reports: Energy, 2021
Being progressively applied in the design of highly active catalysts for energy devices, machine learning (ML) technology has shown attractive ability of dramatically reducing the computational cost of the traditional density functional theory (DFT ...
Xuhao Wan   +3 more
doaj   +1 more source

Parallel Implementation of Large-Scale Linear Scaling Density Functional Theory Calculations With Numerical Atomic Orbitals in HONPAS

open access: yesFrontiers in Chemistry, 2020
Linear-scaling density functional theory (DFT) is an efficient method to describe the electronic structures of molecules, semiconductors, and insulators to avoid the high cubic-scaling cost in conventional DFT calculations.
Zhaolong Luo   +4 more
doaj   +1 more source

Periodic DFT Calculations—Review of Applications in the Pharmaceutical Sciences

open access: yesPharmaceutics, 2020
In the introduction to this review the complex chemistry of solid-state pharmaceutical compounds is summarized. It is also explained why the density functional theory (DFT) periodic calculations became recently so popular in studying the solid APIs ...
Anna Helena Mazurek   +2 more
doaj   +1 more source

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