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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References

SHOWING 1-10 OF 24 REFERENCES
Observation of Pressure-Induced Superconductivity of Sulfur.
The electrical resistance of sulfur has been measured under pressures up to 100 GPa and temperatures down to 70 mK. Under pressures approaching 100 GPa, sulfur shows metallic reflection comparable to
Optical response of very high density solid oxygen to 132 GPa
We have measured the pressure dependence of the absorption edge to 82±2 GPa and the reflectivity to 132±2 GPa from 0.48 to 3.2 eV of polycrystalline oxygen in a diamond anvil cell. The optical
New high-pressure structural transition of oxygen at 96 GPa associated with metallization in a molecular solid.
TLDR
An angle-dispersive powder x-ray diffraction study of solid oxygen has been carried out up to 116 GPa at room temperature and a new high-pressure structural transition was observed and explained as an isostructural transition with a discontinuous change in lattice constants in a monoclinic cell.
Oxygen under High Pressure-Temperature Dependence of Electrical Resistance
We have measured electrical resistance of oxygen under high pressures up to 120 GPa and at temperatures down to 45 mK. With increasing pressure, the resistivity of oxygen was found to decrease
The Phase Composition of Triton's Polar Caps
TLDR
The model has other implications for the phase transition phenomena on Triton, such as a plausible mechanism for the origin of geyser-like plume vent areas and a mechanism of energy transport toward them.
On the microphysical state of the surface of Triton (and beyond).
On the basis of an analysis of the microphysical processes involved in pressureless sintering of particulate materials and an examination of the physical conditions likely to prevail on Triton, it is
Temperature, N2, and N density profiles of Triton's atmosphere: Observations and model
Improved analysis of the Voyager Ultraviolet Spectrometer (UVS) observations of the solar occultation by Triton yields the isothermal temperature and N2 number densities in the altitude range 475–675
Dynamics of Triton's atmosphere
THE recent Voyager encounter established certain facts about Triton's atmosphere: the surface pressure is in the range 1.5–1.9 Pa (15–19 μbar)1; the surface temperature is 38±3K (ref. 2); molecular
...
1
2
3
...