An analysis of the structure of the optimized effective Kohr-Sham exchange potential v, and its gradient approximations is presented. The potential is decomposed into the Slater potential us and the response of us to density variations, vresp. The latter exhibits peaks that reflect the atomic shell
An investigation of the kohn-sham and slater approximations to the hartree-fock exchange potential
β Scribed by David J. Mcnaughton; Vedene H. Smith Jr.
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 725 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0020-7608
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π SIMILAR VOLUMES
In this paper we consider the semi-infinite jellium and structureless pseudopotential models of a metal surface and derive the exact analytical asymptotic structure in the classically forbidden region of (i) the Slater exchange potential V s x (r), (ii) the Kohn Sham exchange potential & x (r), and
An approximation scheme was developed for the KohnαSham exchangeαcorrelation potential v , making use of a partitioning of v into a long-range screening v and xc x c scr a short-range response v component. For the response part, a model v mod was used, res p res p which represents v as weighted orbi