Calculation of the dielectric constant epsilon and first nonlinear susceptibility chi((2)) of crystalline potassium dihydrogen phosphate by the coupled perturbed Hartree-Fock and coupled perturbed Kohn-Sham schemes as implemented in the CRYSTAL code

The Journal of Chemical Physics
Valentina LacivitaRoberto Dovesi

Abstract

The high-frequency dielectric varepsilon and the first nonlinear electric susceptibility chi((2)) tensors of crystalline potassium dihydrogen phosphate (KH(2)PO(4)) are calculated by using the coupled perturbed Hartree-Fock and Kohn-Sham methods as implemented in the CRYSTAL code. The effect of basis sets of increasing size on varepsilon and chi((2)) is explored. Five different levels of theory, namely, local-density approximation, generalized gradient approximation (PBE), hybrids (B3LYP and PBE0), and HF are compared using the experimental and theoretical structures corresponding not only to the tetragonal geometry I4d2 at room temperature but also to the orthorhombic phase Fdd2 at low temperature. Comparison between the two phases and their optical behavior is made. The calculated results for the tetragonal phase are in good agreement with the experimental data.

References

Nov 15, 1986·Physical Review. B, Condensed Matter·R Resta, K Kunc
Sep 13, 2002·Physical Review Letters·Ivo SouzaDavid Vanderbilt
Oct 9, 2002·Physical Review Letters·P Umari, Alfredo Pasquarello
Sep 18, 2004·Journal of Computational Chemistry·C M Zicovich-WilsonR Dovesi
Jan 15, 2008·The Journal of Chemical Physics·Mauro FerreroRoberto Dovesi
Feb 14, 2008·Journal of Computational Chemistry·Mauro FerreroRoberto Dovesi

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Citations

Jan 13, 2012·Chemical Reviews·Trygve HelgakerKenneth Ruud
Jan 10, 2013·The Journal of Chemical Physics·Cédric CarteretRoberto Dovesi
Jun 25, 2021·Chemical Science·Rubén A FritzFelipe Herrera

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Software Mentioned

CRYSTAL06
CRYSTAL
CPKS
CPHF

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