News and Views

Nature Materials 2, 650 - 651 (2003)
doi:10.1038/nmat990

Superconductors: Clathrates join the covalent club

Vincent H. Crespi1

  1. Vincent H. Crespi is at the Departments of Physics and Materials Science and Engineering, Materials Research Institute, Pennsylvania State University, USA. http://www.phys.psu.edu/people/crespi.html

Covalent metals, such as MgB2 and the alkali-doped fullerenes, form an unusual class of superconductors. The mechanism of superconductivity in a new member of this family — the silicon clathrates — has now been determined.

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