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Nature 412, 290-291 (19 July 2001) | doi:10.1038/35085681
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Superconductivity: Iron cast in exotic role
S. S. Saxena1 & Peter B. Littlewood
Abstract
Conventional wisdom says that superconductivity and magnetism are incompatible bedfellows. So the idea of iron as a superconductor is ruled out — or is it?
Iron is one of the commonest heavy elements on Earth and is the best known example of a magnetic metal. Up to temperatures of about 1,000 K the stable structure of iron is that of a body-centred cubic (bcc) crystal, and it is strongly ferromagnetic — that is, capable of being permanently magnetized (Fig. 1
- S. S. Saxena is in the Department of Physics, University College London, Gower Street, London WC1E 6BT, UK.
Correspondence to: Peter B. Littlewood Peter B. Littlewood is in the Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, UK.
e-mail: Email: pbl21@phy.cam.ac.uk
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