Cited by 4,624Advanced Chemical Physics StudiesMachine Learning in Materials ScienceAdvanced Physical and Chemical Molecular Interactions

Van der Waals density functionals applied to solids

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Klimeš, Jiří, Bowler, David R., Michaelides, Angelos·2011·Physical Review B

Abstract

The van der Waals density functional (vdW-DF) of M. Dion et al. [Phys. Rev. Lett. 92, 246401 (2004)] is a promising approach for including dispersion in approximate density functional theory exchange-correlation functionals. Indeed, an improved description of systems held by dispersion forces has been demonstrated in the literature. However, despite many applications, standard general tests on a broad range of materials including traditional ``hard'' matter such as metals, ionic compounds, and insulators are lacking. Such tests are important not least because many of the applications of the vdW-DF method focus on the adsorption of atoms and molecules on the surfaces of solids. Here we calculate the lattice constants, bulk moduli, and atomization energies for a range of solids using the original vdW-DF and several of its offspring. We find that the original vdW-DF overestimates lattice constants in a similar manner to how it overestimates binding distances for gas-phase dimers. However, some of the modified vdW functionals lead to average errors which are similar to those of PBE or better. Likewise, atomization energies that are slightly better than from PBE are obtained from the modified vdW-DFs. Although the tests reported here are for hard solids, not normally materials for which dispersion forces are thought to be important, we find a systematic improvement in cohesive properties for the alkali metals and alkali halides when nonlocal correlations are accounted for.

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Crossref · 10.1103/physrevb.83.195131

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  1. 35 J. Friedel, Proc. Phys. Soc. B 65 , 769 (1952).

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Authors
Klimeš, J., Bowler, D. R., & Michaelides, A.
Affiliations
London Centre for Nanotechnology (GB)
Venue
Physical Review B
Published
2011-05-25
Volume
83
Issue
19
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
OpenAlex
W2000536749
Cited by
4,624
References
80
Citations by year
2026: 224 · 2025: 328 · 2024: 333 · 2023: 304 · 2022: 375 · 2021: 387 · 2020: 385 · 2019: 427 · 2018: 408 · 2017: 361 · 2016: 343 · 2015: 281 · 2014: 232 · 2013: 146 · 2012: 72
FWCI
80.67
Type
journal article
Language
en
Open access
Locations
  • Physical Review B (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • arXiv (Cornell University)
  • Bulletin of the American Physical Society
Funders
Engineering and Physical Sciences Research Council (EP/F067496/1)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
  • Physical Sciences › Materials Science › Materials Chemistry › Machine Learning in Materials Science
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Advanced Physical and Chemical Molecular Interactions
Keywords
van der Waals density functional, dispersion interactions, exchange-correlation functionals, lattice parameters, bulk modulus, atomization energies, cohesive properties, alkali metals, alkali halides, nonlocal correlations, solids

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