Physicists at the Russian Academy of Sciences are claiming to have created a form of diamond that superconducts. Vladimir Sidorov and colleagues say that their material, which they made by doping carbon with boron at high temperatures and pressures, exhibits bulk superconductivity below around 4 kelvin and remains a superconductor in strong magnetic fields (E A Ekimov et al. 2004 Nature 428 542).This is the first time that boron-doped diamond -- which is normally a semiconductor -- has shown superconducting behaviour.

















High-Frequency Transformations
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