Preparation of Superconducting Bi-Ca-Sr-Cu-O Printed Thick Films Using a Coprecipitation of Oxalates

Abstract

Bi-Ca-Sr-Cu-O thick films were prepared by printing using a coprecipitation of oxalates on (100) single-crystal MgO. We have obtained a superconducting thick film with T _c (extrapolated to zero-resistance) of 105 K, T _on of 115 K and T _off of 80 K, and it appears to be strongly oriented along the c-axis perpendicular to the substrate.