Performance of Tao-Mo semilocal density functional in projector-augmented-wave method

Abstract

We assess the performance of Tao-Mo semilocal exchange correlation (TM) functional [J. Tao and Y. Mo, Phys. Rev. Lett. 117, 073001 (2016)] using projector-augmented-wave method with the plane wave basis set in Vienna ab initio simulation package (VASP). The meta-GGA level semilocal functional TM is an all purpose exchange-correlation functional which performs accurately for the wide range of molecular and solid state properties. The exchange functional part of TM is designed from the density matrix expansion (DME) technique together with the slowly varying fourth order gradient expansion. The correlation functional of the corresponding exchange is based on Tao-Perdew-Staroverov-Scuseria (TPSS) functional. We assess the performance of TM for solid state lattice constants, bulk moduli, band gaps, cohesive energies and magnetic moments of solids. It has been established that in plane wave basis the TM functional performs accurately in predicting all the solid state properties in semilocal level.

9 pages

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