Patent ID: 8536098

Claim:
A composition of matter comprising a superconducting film of overall composition RE0.8-2.0Ba1.5-2.5M0.01-0.2Cu2.5-3.5Ox, where M is selected from Ti, Zr, Al, Hf, Ir, Sn, Nb, Mo, Ta, Ce or V and RE is selected from Y, Pr, Nd, Gd, Sm, Er, Eu, Pm, Dy, Ho, Tb, Tm or Lu; wherein M forms an oxide compound that results in epitaxial, non-superconducting, columnar defects within the superconducting film oriented along the c-axis of the superconductor; wherein said superconducting film further having crystalline defects aligned perpendicular to the c-axis of the superconductor and with the resulting superconducting film characterized by enhanced flux-pinning.