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Superconductivity and NMR investigations of KTl1.5-doped C60

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Zeitschrift für Physik B Condensed Matter

Abstract

Doping of C60 fullerene with KTl1.5 results in superconductivity withT onset c =17.6 K as shown by a dc magnetization measurement. Preliminary13C NMR studies on a doped and undoped sample are reported. Compared to original C60 the linewidth increases by a factor of 3, the resonance frequency is shifted by 42 ppm, and the relaxation rateT −11 is an order of magnitude larger in the intercalated material at room temperature. Both observations support the picture of a metallic sample.

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Authors and Affiliations

  1. Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, W-1000, Berlin 33, Germany

    M. Kraus, J. Freytag, S. Gärtner, H. M. Vieth & K. Lüders

  2. Max-Planck-Institut für Kernphysik, Postfach 103980, W-6900, Heidelberg, Germany

    W. Krätschmer

Authors
  1. M. Kraus
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  2. J. Freytag
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  3. S. Gärtner
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  4. H. M. Vieth
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  5. W. Krätschmer
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  6. K. Lüders
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Kraus, M., Freytag, J., Gärtner, S. et al. Superconductivity and NMR investigations of KTl1.5-doped C60 . Z. Physik B - Condensed Matter 85, 1–2 (1991). https://doi.org/10.1007/BF01387780

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  • DOI: https://doi.org/10.1007/BF01387780

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