Pair-Wise and Many-Body Dispersive Interactions Coupled to an Optimally Tuned Range-Separated Hybrid Functional

ORAL

Abstract

We propose a nonempirical, pair-wise or many-body dispersion-corrected, optimally tuned range-separated hybrid functional. This functional retains the advantages of the optimal-tuning approach in the prediction of the electronic structure. At the same time, it gains accuracy in the prediction of binding energies for dispersively bound systems, as demonstrated on the S22 and S66 benchmark sets of weakly bound dimers.

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Authors

  • Leeor Kronik

    • Department of Materials and Interfaces, Weizmann Institute of Science
    • Weizmann Institute of Science, Israel
    • Dept. Materials and Interfaces, Weizmann Institute
    • Weizmann Institute of Science
    • Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100, Israel
    • Dept. of Materials and Interfaces, Weizmann Institute of Science, Rehovot 7610001
    • Department of Materials and Interfaces, Weizmann Institute of Science, Israel

  • Piyush Agrawal

    • Weizmann Institute of Science

  • Alexandre Tkatchenko

    • Fritz-Haber-Institute, Berlin