Metallic screening and correlation effects in superconducting fullerenes

P. E. Lammert, D. S. Rokhsar, S. Chakravarty, S. Kivelson, M. I. Salkola

Research output: Contribution to journalArticle

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Abstract

We consider the frequency-dependent Coulomb interaction between electrons in a molecular metal in the limit in which the conduction bandwidth is much less than the plasma frequency, which in turn is much less than intramolecular excitation energies. In particular, we compute the effective interactions at the Fermi energy in alkali-doped C60 to second order in the screened interactions. The frequency dependence of screening substantially reduces the effects of the long-range part of the Coulomb interaction, leading to the possibility of effective attraction between electrons.

Original languageEnglish (US)
Pages (from-to)996-999
Number of pages4
JournalPhysical Review Letters
Volume74
Issue number6
DOIs
Publication statusPublished - Jan 1 1995

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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