نتایج جستجو برای: pseudopotential method

تعداد نتایج: 1630764  

2000
Ilya Grinberg Nicholas J. Ramer Andrew M. Rappe

We present a method for constructing a scalar-relativistic pseudopotential that provides exact agreement with relativistic Dirac-Slater all-electron eigenvalues at the reference configuration. All-electron wave functions are self-consistently computed in the valence region at the exact all-electron scalar relativistic eigenvalues. This method improves transferability of the resulting pseudopote...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2007
M Sbragaglia R Benzi L Biferale S Succi K Sugiyama F Toschi

The physical behavior of a class of mesoscopic models for multiphase flows is analyzed in details near interfaces. In particular, an extended pseudopotential method is developed, which permits to tune the equation of state and surface tension independently of each other. The spurious velocity contributions of this extended model are shown to vanish in the limit of high grid refinement and/or hi...

2008
Peter E. Blöchl Clemens J. Först Johannes Schimpl

A brief introduction to the projector augmented wave method is given and recent developments are reviewed. The projector augmented wave method is an all-electron method for efficient ab-initio molecular dynamics simulations with full wave functions. It extends and combines the traditions of existing augmented wave methods and the pseudopotential approach. Without sacrificing efficiency, the PAW...

Journal: :The Journal of chemical physics 2005
Vincent Cocula Chris J Pickard Emily A Carter

The use of the spin-dependent pseudopotentials has been shown to markedly enhance the transferability of the commonly used spin-neutral pseudopotential method for the study of the structural and magnetic properties of transition-metal-containing materials. Unfortunately, because the method was based on the rather expensive norm-conserving pseudopotential formalism, the method was limited to the...

2010
B Monserrat

Analytic results for twoand three-centre integrals are derived for the truncated spherical-wave basis set designed for first-principles pseudopotential calculations within density-functional theory. These allow the overlap, kinetic energy and non-local pseudopotential matrix elements to be calculated efficiently and accurately. In particular, the scaling of the computational effort with maximum...

Journal: :Journal of Mathematical Analysis and Applications 2008

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