High-Temperature Superconductivity [book]

Josef Ashkenazi, Stewart E. Barnes, Fulin Zuo, Gary C. Vezzoli, Barry M. Klein
The widely held notion that high-temperature superconductivity originates in the cuprate-planes is proven to be faulty. In the cuprates such as YBa2Cu3O7, we argue that the superconductivity resides in the BaO layers. This superconductivity is s-wave, not d-wave, in the bulk. The trio of ruthenate compounds, doped Sr 2 YRuO 6 , GdSr2Cu2RuO8, and Gd2−zCezSr2Cu2RuO10 all superconduct in their SrO layers, which is why they have almost the same ∼49 K onset temperatures for superconductivity.
doi:10.1007/978-1-4615-3338-2 fatcat:rlzz7jyy3fhjdi2ma4sp6oouem