Isotope effect in superconducting Rb3C60

A. P. Ramirez, A. R. Kortan, M. J. Rosseinsky, S. J. Duclos, A. M. Mujsce, R. C. Haddon, D. W. Murphy, A. V. Makhija, S. M. Zahurak, and K. B. Lyons
Phys. Rev. Lett. 68, 1058 – Published 17 February 1992
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Abstract

Measurements of the superconducting Tc and Raman spectra in isotopically modified Rb3C60 are reported. A decrease in Tc of 0.65±0.10 K in samples with (75±5)% substitution of C13 for C12 yields an exponent of α=0.37±0.05. This interpreted as evidence for phonon-mediated pairing.

  • Received 10 December 1991

DOI:https://doi.org/10.1103/PhysRevLett.68.1058

©1992 American Physical Society

Authors & Affiliations

A. P. Ramirez, A. R. Kortan, M. J. Rosseinsky, S. J. Duclos, A. M. Mujsce, R. C. Haddon, D. W. Murphy, A. V. Makhija, S. M. Zahurak, and K. B. Lyons

  • AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974

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Vol. 68, Iss. 7 — 17 February 1992

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