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Publication
Physical Review Letters
Paper
Improved statistical exchange approximation for inhomogeneous many-electron systems
Abstract
We have developed an improved exchange approximation for use in self-consistent atomic structure calculations and related problems. By adding an inhomogeneity correction to the Kohn-Sham-Gaspar exchange potential, we are able to obtain total energies for atoms that are consistently closer to the Hartree-Fock values than are those given by other recently proposed exchange potentials. © 1969 The American Physical Society.