High-Temperature Superconductivity in Lattice-Expanded C 60
- 28 September 2001
- journal article
- retracted article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 293 (5539) , 2432-2434
- https://doi.org/10.1126/science.1064773
Abstract
C 60 single crystals have been intercalated with CHCl 3 and CHBr 3 in order to expand the lattice. High densities of electrons and holes have been induced by gate doping in a field-effect transistor geometry. At low temperatures, the material turns superconducting with a maximum transition temperature of 117 K in hole-doped C 60 /CHBr 3 . The increasing spacing between the C 60 molecules follows the general trend of alkali metal–doped C 60 and suggests routes to even higher transition temperatures.Keywords
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