Material Specific Rational Design of A$_1$B$_2$C$_3$O$_7$ High-Tc Superconductors \textit{without} Copper [A, B, C = Cations]

Soon after the discovery of YBa$_2$Cu$_3$O$_7$ with Tc $=$ 93K, a similar structured system with Ag replacing Cu was discovered with a Tc $=$ 50K. Also, the discovery of Ba$_0.6$K$_0.4$BiO$_3$ with Tc $=$ 30K indicated that Cu was not indispensable for high temperature superconductivity (HTSC). Latter, the discoveries of the Pnictide and Chalcogenide high-Tc superconductors confirmed those earlier experimental indications. Using our recently developed Material Specific Characterization Dataset (MSCD) model for analysis and design of superconductors, we have computed many designs that satisfy the MSCD characteristics of YBa$_2$Cu$_3$O$_7 $as a design model. Our design recognizes the valence state characteristics that make YBa$_2$Cu$_3$O$_6 $a semiconductor, while YBa$_2$Cu$_3$O$_7 $is a superconductor. Here we present ten material specific rational design examples of potential A$_1$B$_2$C$_3$O$_7$ HTSCs without Cu, using the YBa$_2$Cu$_3$O$_7$ design model. This MSCD design model opens the possibility for search and discovery of high-Tc oxide superconductor systems without copper.