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High-Temperature Superconductivity in Lattice-Expanded C60
J. H. Schön,12*Ch. Kloc,1B. Batlogg13
C60 single crystals have been intercalated with
CHCl3 and CHBr3 in order to expand the lattice.
High densities of electronsand holes have been induced by gate doping
in a field-effect transistorgeometry. At low temperatures, the
material turns superconductingwith a maximum transition temperature of
117 K in hole-doped C60/CHBr3.The increasing
spacing between the C60 molecules follows the generaltrend of alkali metal-doped C60 and suggests routes to
even highertransition temperatures.
1 Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, NJ 07974, USA.
2 University of Konstanz, Department of Physics,
D-78457 Konstanz, Germany.
3 Solid State Physics
Laboratory, Eidgenössische Technische Hochschule, CH-8093
Zürich, Switzerland
*
To whom correspondence should be addressed. E-mail:
hendrik{at}lucent.com
The editors suggest the following Related Resources on Science sites:
In Science Magazine
PERSPECTIVES
Elbio Dagotto (28 September 2001) Science293 (5539), 2410.
[DOI: 10.1126/science.1065711] |Summary »|Full Text »|PDF »
REPORTS
J. H. Schön, M. Dorget, F. C. Beuran, X. Z. Xu, E. Arushanov, M. Laguës, and C. Deville Cavellin (28 September 2001) Science293 (5539), 2430.
[DOI: 10.1126/science.1064204] |Abstract »|Full Text »|PDF »
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