ar X iv : c on d - m at / 9 30 30 07 v 1 5 M ar 1 99 3 Electrostatic screening in fullerene molecules
نویسنده
چکیده
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 C60 is well eproduced.
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