Abstract
AbstractA possible pairing mechanism in the alkali metal‐doped fullerides A3C60 is studied. We have calculated the total π‐electron enecrgies of different ions C60n of the Buckminster fullerene and its isomers (with \documentclass{article}\pagestyle{empty}\begin{document}$ n = 0, \mp 1,\, \mp 2, \mp 3, \mp 4, \mp 5, \mp \, {\rm or}\, \mp 6 $\end{document}). It is shown that anions of the isomers are energetically more stable than the ideal Buckminster fullerene. We have calculated the formation energies of electron local pairs on the C60 clusters. For the phascs consisting of a single type isomer such a formation seems not to be possible. For a mixture of two isomers, however, the electron local pair is stable on anions with odd (in average) valencies. This can serve as a purely electronic pairing mechanism for the so‐called local pair model of superconductivity.
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