Superconductivity in alkali-intercalated C60

✍ Scribed by M.A. Schlüter; M. Lannoo; M. Needels; G.A. Baraff; D. Tomanék

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 544 KB
• Volume: 19
• Category: Article
• ISSN: 0921-5107
• DOI: 10.1016/0921-5107(93)90177-o

✦ Synopsis

Superconductivity observed in alkali-intercalated, solid C6o can be explained on the basis of conventional Bardeen-Cooper-Schrieffer theory. Intramolecular Jahn-Teller-type vibrations with high frequencies couple to conduction electrons in C~o ~r orbitals with strength V. The density of these states (N) is determined by the relatively weak intermolecular coupling. This results in a real space factorization of the coupling parameter A=NV, which has several experimental consequences. We present detailed calculations that lead to this picture and compare these with existing experiments.