Guided by the idea of Ashcroft [1] on the metallization of hydrogen, and the electron–phonon (EP) interaction background of the BCS theory of superconductivity, Drozdov et al. metalized hydrogen sulfide and at 200 GPa detected superconductivity [2] with the highest critical temperature recorded so far, T c ∼ 203 K. Within the Allen-Dynes’ strong-coupling treatment, the superconductivity …
https://www.sciencedirect.com/science/article/pii/S221137971500073X

