Bulk superconductivity at 84 K in the strongly overdoped regime of cuprates
Bulk superconductivity at 84 K in the strongly overdoped regime of cuprates
By means of magnetization, specific heat and muon-spin relaxation measurements, we investigate high-pressure oxidized \mohpo, in which overdoping is achieved up to $p \sim 0.45$ hole/Cu, well beyond the $T_c - p$ superconducting dome of cuprates, where Fermi liquid behavior is expected. Surprisingly, we find bulk superconductivity with $T_c$=84 K …