Rubidium isotope effect in superconducting Rb3C60

B. Burk, Vincent Henry Crespi, A. Zettl, Marvin L. Cohen

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We have measured the resistive supercondeucting transition temperature in C60 single crystals intercalated with isotopically pure Rb87 and Rb85 and with natural abundance rubidium. We obtain a rubidium isotope effect exponent of αRb=-0.028±0.036, a result which implies that the Rb-C60 optic phonons play at most a minor role in the pairing mechanism of Rb3C60.

Original languageEnglish (US)
Pages (from-to)3706-3709
Number of pages4
JournalPhysical Review Letters
Issue number23
Publication statusPublished - Jan 1 1994


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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