to Nature home page
home
search









Nature30 November 2000
  nature highlights
Nature © Macmillan Publishers Ltd.

Superconductivity: Raising the temperature in fullerenes

Superconductivity was first observed in a fullerene, electron-doped C60, about a decade ago. There are reasons to believe that the superconducting transition temperature (Tc) should be higher for hole-doped C60, where electrons are removed from the molecule rather than added, but C60 is notoriously loathe to give up electrons. Sch�n et al. have now succeeded in introducing up to 4.5 'holes' per C60 molecule, raising Tc to 52K, five times higher than the electron-doped molecule, and the highest transition temperature so far reported for a non-copper oxide superconductor.

article
Superconductivity at 52K in hole-doped C60
J. H. SCH�N, CH. KLOC, B. BATLOGG
Nature 408, 549-552 (30 November 2000)
| Abstract | Full Text | PDF |

news and views
Superconductivity: C60 - the hole story
OLLE GUNNARSSON
Superconductivity has been demonstrated at a surprisingly high temperature in a C60 solid, raising questions about its electronic properties and hopes of even higher temperatures to come.
Nature 408, 528-529 (30 November 2000)
| Full Text | PDF |

nature science update
physics : Buckyball superconductors hot up
The carbon football could become the hottest of superconductors, reports Philip Ball. (30 November 2000)

30 November 2000 table of contents

 

   
Macmillan MagazinesNature © Macmillan Publishers Ltd 2000 Registered No. 785998 England.