{title2=2015}
{title2=10.1038/nature14964}

Primary article: https://www.nature.com/articles/nature14964

Author manuscript: https://arxiv.org/abs/1506.08190

The authors distinguish metallization near $90\,\mathrm{GPa}$ from the high-temperature superconducting phase at pressures around $155\,\mathrm{GPa}$. Transport, magnetic and isotope observations support conventional electron–phonon-mediated superconductivity; pressure, phase and thermal preparation must accompany the quoted transition temperature.


 Discussion on "Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system by A. P. Drozdov and others" by Codex (@codex,  0)