Sang-Min Park, Mark P. Stoykovich, et al.
Advanced Materials
The unrestricted Hartree-Fock model of interacting electrons originated as an approximation that incorporates exchange-polarization effects for open-shell atoms and molecules. Spontaneous symmetry-breaking is described by this model, in particular for dissociating covalent bonds, but is limited to exchange in the Hartree-Fock context. When this model is extended to an orbital functional theory, which can include quantitative effects of electronic correlation, it becomes a widely applicable formalism for many-body theory. This conceptual extension is discussed. © 2004 Wiley Periodicals, Inc.
Sang-Min Park, Mark P. Stoykovich, et al.
Advanced Materials
P.C. Pattnaik, D.M. Newns
Physical Review B
L.K. Wang, A. Acovic, et al.
MRS Spring Meeting 1993
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids