TY - JOUR
T1 - Interactions, pair binding and ferromagnetism on spherical molecules
AU - Auerbach, A.
AU - Murthy, G. N.
PY - 1992/5/15
Y1 - 1992/5/15
N2 - 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.
AB - 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.
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U2 - 10.1209/0295-5075/19/2/008
DO - 10.1209/0295-5075/19/2/008
M3 - Letter
AN - SCOPUS:84914057228
SN - 0295-5075
VL - 19
SP - 103
EP - 108
JO - Lettere Al Nuovo Cimento
JF - Lettere Al Nuovo Cimento
IS - 2
ER -