Abstract
The energy of a system of electrons on a sphere with purely repulsive interactions is computed by perturbation theory. Second-order results yield an effective attraction between added electrons, in the L = 0 singlet state or in the L = 1 triplet state, which depends on the magnitude and range of the interaction. An estimate of third-order corrections bounds the regime where these predictions are expected to hold. We discuss the relevance of this model to superconductivity and ferromagnetism in doped fullerenes.
Original language | English |
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Pages (from-to) | 103-108 |
Number of pages | 6 |
Journal | Europhysics Letters |
Volume | 19 |
Issue number | 2 |
DOIs | |
State | Published - May 15 1992 |
ASJC Scopus subject areas
- Physics and Astronomy (all)