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RETRACTED ARTICLE

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Science. 2001 Sep 28;293(5539):2432-4. Epub 2001 Aug 30.

High-temperature superconductivity in lattice-expanded C60.

Author information

1
Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, NJ 07974, USA. hendrik@lucent.com

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Abstract

C60 single crystals have been intercalated with CHCl3 and CHBr3 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 C60/CHBr3. The increasing spacing between the C60 molecules follows the general trend of alkali metal-doped C60 and suggests routes to even higher transition temperatures.

PMID:
11533443
DOI:
10.1126/science.1064773
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