van der Waals forces in density functional theory: Perturbational long-range electron-interaction corrections
In: ISSN: 1050-2947 ; EISSN: 1094-1622, 2005
Online
academicJournal
Zugriff:
International audience ; Long-range exchange and correlation effects, responsible for the failure of currently used approximate density functionals in describing van derWaals forces, are taken into account explicitly after a separation of the electron-electron interaction in the Hamiltonian into short- and long-range components. We propose a "range-separated hybrid" functional based on a local density approximation for the short-range exchange-correlation energy, combined with a long-range exact exchange energy. Long-range correlation effects are added by a second-order perturbational treatment. The resulting scheme is general and is particularly well adapted to describe van der Waals complexes, such as rare gas dimers.
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van der Waals forces in density functional theory: Perturbational long-range electron-interaction corrections
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Autor/in / Beteiligte Person: | Angyán, János G. ; Gerber, I.C. ; Savin, Andreas ; Toulouse, Julien ; Cristallographie, Résonance Magnétique et Modélisations (CRM2) ; Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) ; Laboratoire de chimie théorique (LCT) ; Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) |
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Zeitschrift: | ISSN: 1050-2947 ; EISSN: 1094-1622, 2005 |
Veröffentlichung: | HAL CCSD ; American Physical Society, 2005 |
Medientyp: | academicJournal |
DOI: | 10.1103/PhysRevA.72.012510 |
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