Displacive quantum critical point in superconducting hydrides: The case of H${}_3$S

Marco Cherubini, Abhishek Raghav, Michele Casula

H${}_3$S sulfur hydride has been widely investigated for its high superconducting critical temperature $T_c$ of 203 K at about $p_c=155$ GPa. Despite being the precursor of superco…