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Issue 13, 2008
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Self-consistent treatment of spin–orbit interactions with efficient Hartree–Fock and density functional methods

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Abstract

Efficient self-consistent field (SCF) schemes including both scalar relativistic effects and spin–orbit (SO) interactions at Hartree–Fock (HF) and density functional (DFT) levels are presented. SO interactions require the extension of standard procedures to two-component formalisms. Efficiency is achieved by using effective core potentials (ECPs) and by employing the resolution-of-the-identity approximation for the Coulomb part (RI-J) in pure DFT calculations as well as also for the HF-exchange part (RI-JK) in the case of HF or hybrid-DFT treatments. The procedures were implemented in the program system TURBOMOLE; efficiency is demonstrated for comparably large systems, such as Pb54. Relevance of SO effects for electronic structure and stability is illustrated by treatments of small Pb and Po clusters with and without accounting for SO effects.

Graphical abstract: Self-consistent treatment of spin–orbit interactions with efficient Hartree–Fock and density functional methods

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Article information


Submitted
15 Nov 2007
Accepted
08 Jan 2008
First published
14 Feb 2008

Phys. Chem. Chem. Phys., 2008,10, 1748-1756
Article type
Paper

Self-consistent treatment of spin–orbit interactions with efficient Hartree–Fock and density functional methods

M. K. Armbruster, F. Weigend, C. van Wüllen and W. Klopper, Phys. Chem. Chem. Phys., 2008, 10, 1748 DOI: 10.1039/B717719D

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