We extend the periodic charge-dipole electrostatic model, see I. V. Bodrenko, M. Sierka, E. Fabiano, and F. Della Sala, J. Chem. Phys. 137, 134702 (2012), to include a kinetic-exchange-correlation (KXC) correction. The KXC correction is approximated by means of an extended-Hückel-type formula, it is exact in the infinite jellium model and it is also computationally efficient as it requires only the computation of overlap integrals. Tests on the linear response of silver slabs to an external electrostatic perturbation show that the KXC correction yields a very accurate description of induced dipole and of the whole induced charge density profile. We also show that the KXC parameters are quite transferable and related to the atomic polarizability.
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14 October 2013
Research Article|
October 11 2013
A periodic charge-dipole electrostatic model. II. A kinetic-exchange-correlation correction
I. V. Bodrenko;
I. V. Bodrenko
1National Nanotechnology Laboratory (NNL),
Istituto Nanoscienze-CNR
, Via per Arnesano 16, 73100 Lecce, Italy
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F. Della Sala
F. Della Sala
a)
1National Nanotechnology Laboratory (NNL),
Istituto Nanoscienze-CNR
, Via per Arnesano 16, 73100 Lecce, Italy
2Center for Biomolecular Nanotechnologies@UNILE,
Istituto Italiano di Tecnologia (IIT)
, Via Barsanti, 73010 Arnesano (LE), Italy
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a)
Author to whom correspondence should be addressed. Electronic mail: fabio.dellasala@unisalento.it
J. Chem. Phys. 139, 144109 (2013)
Article history
Received:
July 17 2013
Accepted:
September 20 2013
Connected Content
This is a companion to:
A periodic charge-dipole electrostatic model: Parametrization for silver slabs
Citation
I. V. Bodrenko, F. Della Sala; A periodic charge-dipole electrostatic model. II. A kinetic-exchange-correlation correction. J. Chem. Phys. 14 October 2013; 139 (14): 144109. https://doi.org/10.1063/1.4824189
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