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- Lee, K. (author)
Higher-accuracy van der Waals density functional
- Article/chapterEnglish2010
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- 2010
- electronicrdacarrier
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- LIBRIS-ID:oai:research.chalmers.se:d303cf82-a6e7-490e-92e4-8c14e1f9c49f
- https://doi.org/10.1103/PhysRevB.82.081101DOI
- https://research.chalmers.se/publication/124987URI
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- Language:English
- Summary in:English
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- We propose a second version of the van der Waals density functional of Dion et al. [Phys. Rev. Lett. 92, 246401 (2004)], employing a more accurate semilocal exchange functional and the use of a large-N asymptote gradient correction in determining the vdW kernel. The predicted binding energy, equilibrium separation, and potential-energy curve shape are close to those of accurate quantum chemical calculations on 22 duplexes. We anticipate the enabling of chemically accurate calculations in sparse materials of importance for condensed matter, surface, chemical, and biological physics.
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- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- energies
- thomas-fermi model
- approximation
- 1st-principles
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- Murray, E. D. (author)
- Kong, L. Z. (author)
- Lundqvist, Bengt,1938Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tfybil (author)
- Langreth, D. C. (author)
- Chalmers tekniska högskola (creator_code:org_t)
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- In:Physical Review B - Condensed Matter and Materials Physics82:82469-99502469-9969
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