PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
Evidence that high-temperature superconductivity originates in the charge-reservoir layers rather than in the cuprate- planes of the host materials is discussed. Hence PrBa2Cu3O7 superconducts when grown under conditions that minimize Ba-site Pr. The supercurrent in high- temperature superconductors is located primarily in the layers where the holes are and the magnetic moments are not. Gd2-zCezCuO4 fails to superconduct because Gd+3 has L equals 0 and does not have its Cooper-pair- breaking limited by crystal-field splitting. The observed charges-transferred in these materials are compatible with charge-reservoir superconductivity, and not with cuprate- plane superconductivity. The observed ionic charge of Ce in Nd2-zCezCuO4 and its homologues is consistent with p-type superconductivity, doping by the p- type defects pair, and a size effect on the superconductivity. The chemical trends in Tc and the amount of Ni or Zn required to destroy superconductivity by pair-breaking clearly indicate that the primary superconducting condensate is in the charge-reservoir layers.
John D. Dow
"Case for superconductivity associated primarily with charge-reservoirs rather than cuprate planes", Proc. SPIE 2999, Photodetectors: Materials and Devices II, (15 April 1997); https://doi.org/10.1117/12.271204
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
John D. Dow, "Case for superconductivity associated primarily with charge-reservoirs rather than cuprate planes," Proc. SPIE 2999, Photodetectors: Materials and Devices II, (15 April 1997); https://doi.org/10.1117/12.271204