Ba2ErNbO6: A new perovskite ceramic substrate for Bi(2223) superconducting thick films (�?�c(0) = 110 K)

[摘要] Barium erbium niobate (Ba₂ErNbO₆) has been developed as a new substrate for (Bi,Pb)₂Sr₂Ca₂Cu₃O_ð‘�? [Bi(2223)] superconductor film. Ba₂ErNbO₆ (BENO) has a cubic perovskite structure with lattice constant, ð‘�? = 8.318 Ã�?. The Bi(2223) superconductor does not show any detectable chemical reaction with BENO even under extreme processing conditions. Dip coated Bi (2223) thick film, Ba₂ErNbO₆ substrate, gave a ð‘�??_c (0) of 110 K and current density of ∼ 4 Ã�? 10³ A cm^-2 at 77 K and zero magnetic field.

[学科分类] 材料工程

[关键词] Barium erbium niobate;perovskite;substrate;sintering;superconducting film.