Dielectric constant of atomic fluids with variable polarizability
- *Lawrence Livermore Laboratory, P.O. Box 808, Livermore, California 94550
- ‡Department of Chemistry, University of California, Berkeley, California 94720
- ¶Laboratoire de Physique Theorique et Hautes Energies, Université de Paris XI, 91405 Orsay, France, Laboratoire associé au Centre National de la Recherche Scientifique
Abstract
The Clausius-Mossotti function for the dielectric constant is expanded in terms of single atom and pair polarizabilities, leading to contributions that depend on both the trace and the anisotropy of the pair-polarizability tensor. The short-range contribution of the anisotropic part to the pair polarizabilities has previously been obtained empirically from light scattering experiments, whereas the trace contribution is now empirically determined by comparison to dielectric experiments. For helium, the short-range trace part agrees well with electronic structure calculations, whereas for argon qualitative agreement is achieved.
Footnotes
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↵ † Present address: Chevron Research Company, P.O. Box 1627, Richmond, CA 94802.
