Superconductivity in oxygen

@article{Shimizu1998SuperconductivityIO,
  title={Superconductivity in oxygen},
  author={Katsuya Shimizu and Kazuhiro Suhara and Masamitsu Ikumo and Mikhail I. Eremets and Kiichi Amaya},
  journal={Nature},
  year={1998},
  volume={393},
  pages={767-769}
}
Among the simple diatomic molecules, oxygen is of particular interest because it shows magnetism at low temperatures. Moreover, at pressures exceeding 95 GPa (∼0.95 Mbar), solid molecular oxygen becomes metallic, accompanied by a structural transition. The metallization process is characterized by an increase in optical reflectivity, and a change in the slope of the resistance–temperature curve. Here we report that at pressures of around 100 GPa, solid oxygen becomes superconducting, with a… 
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