Norm-conserving Hartree–Fock pseudopotentials and their asymptotic behavior
- 14 December 2004
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 122 (1), 14112
- https://doi.org/10.1063/1.1829049
Abstract
We investigate the properties of norm-conserving pseudopotentials (effective core potentials) generated by inversion of the Hartree–Fock equations. In particular, we investigate the asymptotic behavior as r→∞ and find that such pseudopotentials are nonlocal over all space, apart from a few special cases such as H and He. Such extreme nonlocality leads to a lack of transferability and, within periodic boundary conditions, an undefined total energy. The extreme nonlocality must therefore be removed, and we argue that the best way to accomplish this is a minor relaxation of the norm-conservation condition. This is implemented, and pseudopotentials for the atoms H–Ar are constructed and tested.This publication has 30 references indexed in Scilit:
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