QMCPACK: an open source ab initio quantum Monte Carlo package for the electronic structure of atoms, molecules and solids

J Kim, AD Baczewski, TD Beaudet… - Journal of Physics …, 2018 - iopscience.iop.org
QMCPACK is an open source quantum Monte Carlo package for ab initio electronic
structure calculations. It supports calculations of metallic and insulating solids, molecules …

Benchmarks and reliable DFT results for spin gaps of small ligand Fe (II) complexes

S Song, MC Kim, E Sim, A Benali… - Journal of chemical …, 2018 - ACS Publications
All-electron fixed-node diffusion Monte Carlo provides benchmark spin gaps for four Fe (II)
octahedral complexes. Standard quantum chemical methods (semilocal DFT and CCSD (T)) …

Investigation on graphdiyne nanosheet in adsorption of sorafenib and regorafenib drugs: a DFT approach

U Srimathi, V Nagarajan, R Chandiramouli - Journal of Molecular Liquids, 2019 - Elsevier
We investigated the electronic characteristics of graphdiyne nanosheet (Gdn-NS) using first-
principles calculation. The Gdn-NS possesses the energy gap value of 0.52 eV. Also, the …

Systematic DFT+U and Quantum Monte Carlo Benchmark of Magnetic Two-Dimensional (2D) CrX3 (X = I, Br, Cl, F)

D Wines, K Choudhary, F Tavazza - The Journal of Physical …, 2023 - ACS Publications
The search for two-dimensional (2D) magnetic materials has attracted a great deal of
attention because of the experimental synthesis of 2D CrI3, which has a measured Curie …

Phase stability of TiO2 polymorphs from diffusion Quantum Monte Carlo

Y Luo, A Benali, L Shulenburger, JT Krogel… - New Journal of …, 2016 - iopscience.iop.org
Titanium dioxide, TiO 2, has multiple applications in catalysis, energy conversion and
memristive devices because of its electronic structure. Most of these applications utilize the …

Systematic Improvement of Quantum Monte Carlo Calculations in Transition Metal Oxides: sCI-Driven Wavefunction Optimization for Reliable Band Gap Prediction

H Shin, K Gasperich, T Rojas, AT Ngo… - Journal of Chemical …, 2024 - ACS Publications
Accurate determination of the electronic properties of correlated oxides remains a significant
challenge for computational theory. Traditional Hubbard-corrected density functional theory …

Density functional studies on the binding of methanol and ethanol molecules to graphyne nanosheet

V Nagarajan, S Dharani, R Chandiramouli - Computational and Theoretical …, 2018 - Elsevier
The electronic properties and structural stability of zigzag graphyne nanosheet is
investigated with density functional theory (DFT) technique. The structural stability of …

A study on quercetin and 5-fluorouracil drug interaction on graphyne nanosheets and solvent effects—a first-principles study

V Nagarajan, R Chandiramouli - Journal of Molecular Liquids, 2019 - Elsevier
We report graphyne nanosheet as a carrier for drugs, namely quercetin and 5-fluorouracil to
the target cell for the treatment of hepatocellular carcinoma and colorectal carcinoma, which …

[HTML][HTML] A new scheme for fixed node diffusion quantum Monte Carlo with pseudopotentials: Improving reproducibility and reducing the trial-wave-function bias

A Zen, JG Brandenburg, A Michaelides… - The Journal of Chemical …, 2019 - pubs.aip.org
Fixed node diffusion quantum Monte Carlo (FN-DMC) is an increasingly used computational
approach for investigating the electronic structure of molecules, solids, and surfaces with …

Accuracy of ab initio electron correlation and electron densities in vanadium dioxide

I Kylänpää, J Balachandran, P Ganesh, O Heinonen… - Physical Review …, 2017 - APS
Diffusion quantum Monte Carlo results are used as a reference to analyze properties related
to phase stability and magnetism in vanadium dioxide computed with various formulations of …