Dielectric constant of atomic fluids with variable polarizability

Journal Article · Sun Jun 01 04:00:00 EDT 1980 · Proc. Natl. Acad. Sci. U.S.A.; (United States)

DOI:https://doi.org/10.1073/pnas.77.6.3098· OSTI ID:6229205

Alder, B J ^[1]; Weis, J J

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1. Lawrence Livermore Lab., CA

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.

• OSTI ID: 6229205
• Journal Information: Proc. Natl. Acad. Sci. U.S.A.; (United States), Journal Name: Proc. Natl. Acad. Sci. U.S.A.; (United States) Vol. 77:6; ISSN PNASA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
DIELECTRIC MATERIALS
ELECTRICAL PROPERTIES
ELEMENTS
FLUIDS
GASES
HELIUM
MATERIALS
NONMETALS
PHYSICAL PROPERTIES
POLARIZABILITY
RARE GASES