Electrostatic screening in fullerene molecules

Details Electrostatic screening in fullerene molecules Electrostatic screening in fullerene molecules

1993-03-05

arxiv.org/abs/cond-mat/9303007v1

Physics

Condensed Matter

7 pages. Revtex

Scientific paper

The screening properties of fullerene molecules are described by means of a continuum model which uses the electronic wavefunctions of planar graphite as a starting point. The long distance behavior of the system gives rise to a renormalizable theory, which flows towards a non trivial fixed point. Its existence implies an anomalous dielectric constant. The screening properties are neither metallic nor insulating. Alternatively, the intramolecular screening is obtained from a simple approximation to the electronic wavefunctions. Intermolecular effects are also calculated. As a consistency check, it is shown that the observed polarizability of C$_{60}$ is well eproduced.

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