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Upper-critical-field–temperature phase diagram of alkali-metal-intercalated C60 superconductors

C. E. Johnson, H. W. Jiang, K. Holczer, R. B. Kaner, R. L. Whetten, and F. Diederich
Phys. Rev. B 46, 5880(R) – Published 1 September 1992
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Abstract

The temperature dependences of the upper critical field Hc2(T) were measured over a broad range for both K3C60 and Rb3C60 superconductors. We found Hc2(0) to be 28 T for K3C60 and 38 T for Rb3C60 corresponding to the Ginzburg-Landau coherence length of 34 and 30 Å. The H-T phase diagrams do not show qualitative difference from the behavior of a conventional type-II superconductor.

  • Received 18 June 1992

DOI:https://doi.org/10.1103/PhysRevB.46.5880

©1992 American Physical Society

Authors & Affiliations

C. E. Johnson, H. W. Jiang, and K. Holczer

  • Department of Physics, University of California at Los Angeles, Los Angeles, California 90024

R. B. Kaner, R. L. Whetten, and F. Diederich

  • Department of Chemistry, University of California at Los Angeles, Los Angeles, California 90024

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Issue

Vol. 46, Iss. 9 — 1 September 1992

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