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Revealing the Mechanism of Sodium Diffusion in NaxFePO4 Using an Improved Force Field
(2018-04-02)
Olivine NaFePO4 is a promising cathode material for Na-ion batteries. Intermediate
phases such as Na0.66FePO4 govern phase stability during intercalation-deintercalation
processes, yet little is known about Na+ diffusion ...
Enhancing sampling in atomistic simulations of solid state materials for batteries: a focus on olivine NaFePO$_4$
(2017-03-07)
The study of ion transport in electrochemically active materials for energy storage systems requires simulations on quantum-, atomistic- and meso-scales. The methods accessing these scales not only have to be effective but ...
Assessment of van der Waals inclusive density functional theory methods for layered electroactive materials
(2017-01-01)
Computational-driven materials discovery requires efficient and accurate methods.
Density functional theory (DFT) meets these two requirements for many classes of materials.
However, DFT-based methods have limitations.
One ...
Multiple-time-stepping generalized hybrid Monte Carlo methods
(2014-12-31)
Performance of the generalized shadow hybrid Monte Carlo (GSHMC) method [1], which proved to be superior in sampling efficiency over its predecessors [2-4], molecular dynamics and hybrid Monte Carlo, can be further improved ...
Constant pressure hybrid Monte Carlo simulations in GROMACS
(2014-12-31)
Adaptation and implementation of the Generalized Shadow Hybrid Monte Carlo (GSHMC) method for molecular simulation at constant pressure in the NPT ensemble are discussed. The resulting method, termed NPT-GSHMC, combines ...
Combining stochastic and deterministic approaches within high efficiency molecular simulations
(2013-12-31)
Generalized Shadow Hybrid Monte Carlo (GSHMC) is a method for molecular simulations that rigorously alternates Monte Carlo sampling from a canonical ensemble with integration of trajectories using Molecular Dynamics (MD). ...
Molecular dynamics simulations of iron- and aluminum-loaded serum transferrin: Protonation of tyr188 is necessary to prompt metal release
(2012-12-31)
Serum transferrin (sTf) carries iron in blood serum and delivers it into cells by receptor-mediated endocytosis. The protein can also bind other metals, including aluminum. The crystal structures of the metal-free and ...