Influence of a boron oxide admixture on the magnetic and electrical properties of the high-Tc superconductor Bi1.7Pb0.3Sr2Ca2Cu4Oy

Abstract

The influence of an admixture of boron oxide B2O3 on the magnetic and electrical properties of a high-Tc superconducting ceramic with the nominal composition Bi1.7Pb0.3Sr2Ca2Cu4Oy is investigated. A nonmonotonic dependence of the critical temperature Tc (ρ=0) and magnetic susceptibility on the boron concentration is found.