| 摘要 |
The present invention relates to coated conductors comprising a substrate, a high temperature superconductor layer and at least one or more buffer layers, wherein at least one of the buffer layers is a template for biaxially orienting the high temperature superconductor layer wherein the template is composed of a polycrystalline film consisting of a non-stoichiometric material having the nominal chemical formula A 2-x B 2+x O 7 with B being at least one selected from Zr, Hf, Sn, Pb and Ti; A being at least one selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Y, Tm, Yb and Lu; and x ? 0; and wherein the substrate is textured.
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