Results 21 to 30 of about 38,282 (168)

A Review of Solid-Solution Models of High-Entropy Alloys Based on Ab Initio Calculations

open access: yesFrontiers in Materials, 2017
Similar to the importance of XRD in experiments, ab initio calculations, as a powerful tool, have been applied to predict the new potential materials and investigate the intrinsic properties of materials in theory.
Fuyang Tian
doaj   +1 more source

Screw dislocations in BCC transition metals: from ab initio modeling to yield criterion

open access: yesComptes Rendus. Physique, 2021
We show here how density functional theory calculations can be used to predict the temperature- and orientation-dependence of the yield stress of body-centered cubic (BCC) metals in the thermally-activated regime where plasticity is governed by the glide
Clouet, Emmanuel   +3 more
doaj   +1 more source

Combining the in-medium similarity renormalization group with the density matrix renormalization group: Shell structure and information entropy

open access: yesPhysics Letters B, 2023
We propose a novel many-body framework combining the density matrix renormalization group (DMRG) with the valence-space (VS) formulation of the in-medium similarity renormalization group.
A. Tichai   +7 more
doaj   +1 more source

Machine learning method for tight-binding Hamiltonian parameterization from ab-initio band structure

open access: yesnpj Computational Materials, 2021
The tight-binding (TB) method is an ideal candidate for determining electronic and transport properties for a large-scale system. It describes the system as real-space Hamiltonian matrices expressed on a manageable number of parameters, leading to ...
Zifeng Wang   +5 more
doaj   +1 more source

Ab initio calculations of 5H resonant states

open access: yesPhysics Letters B, 2019
By solving the 5-body Faddeev-Yakubovsky equations in configuration space with realistic nuclear Hamiltonians we have studied the resonant states of 5H isotope.
R. Lazauskas, E. Hiyama, J. Carbonell
doaj   +1 more source

SPARC: Simulation Package for Ab-initio Real-space Calculations

open access: yesSoftwareX, 2021
We present SPARC: Simulation Package for Ab-initio Real-space Calculations. SPARC can perform Kohn–Sham density functional theory calculations for isolated systems such as molecules as well as extended systems such as crystals and surfaces, in both ...
Qimen Xu   +7 more
doaj   +1 more source

Short range correlations and the isospin dependence of nuclear correlation functions

open access: yesPhysics Letters B, 2018
Pair densities and associated correlation functions provide a critical tool for introducing many-body correlations into a wide-range of effective theories.
R. Cruz-Torres   +7 more
doaj   +1 more source

Application of Nuclear Inelastic Scattering Spectroscopy to the Frequency Scale Calibration of Ab Initio Calculated Phonon Density of States of Quasi-One-Dimensional Ternary Iron Chalcogenide RbFeSe2

open access: yesApplied Sciences, 2020
This study aims to examine the applicability of nuclear inelastic scattering (NIS) and conventional Mössbauer spectroscopy for calibration of the frequency scale of ab initio calculated phonon density of states (PDOS) of iron ternary chalcogenides.
Airat Kiiamov   +9 more
doaj   +1 more source

Ab InitioCalculation of the Hoyle State

open access: yesPhysical Review Letters, 2011
4 pp, 3 eps figs, version accepted for publication in Physical Review ...
Evgeny Epelbaum   +3 more
openaire   +5 more sources

High-Resolution Photoelectron Spectroscopy and ab initio Quantum Chemistry

open access: yesCHIMIA, 2004
The resolution that can be achieved by photoelectron spectroscopy has been continually improved over the past 50 years and is now sufficiently high for the rovibronic energy level structure of polyatomic molecular cations to be measured accurately ...
Stefan Willitsch   +2 more
doaj   +1 more source

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