INFINITE-LAYER SUPERCONDUCTOR

摘要

PURPOSE:To improve the critical current density (Jc) by doping a material of specified structure with an alkaline-earth metal or a rare-earth metal under high pressure. CONSTITUTION:A conductive plane of a planar 4-coordinate Cu2O with oxygen arranged around copper is provided to obtain a material of infinite-layer structure. The material is then placed in a BN cell, etc., allowed to react with an alkaline-earth metal (e.g. Ba) or a rare-earth metal (e.g. La) at the high pressure and temp. of 30,000 atm and 950-1000 deg.C and doped to produce an infinite-layer superconductor.