Deposition of Gd2Zr2O7 single buffer layers with different thickness for YBa2Cu3O7?δ coated conductors on metallic substrates |
| |
Authors: | LL Ying F Fan B Gao YM Lu ZY Liu CB Cai R Hühne B Holzapfel |
| |
Institution: | 1. Research Center for Superconductors and Applied Technologies, Physics Department, Shanghai University, Shanghai 200444, China;2. IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany |
| |
Abstract: | A series of Gd2Zr2O7 (GZO) single buffer layers with different thicknesses were epitaxially grown on highly textured Ni–5 at.% W tapes using pulsed laser deposition. These allow the subsequent growth of high-quality superconducting YBa2Cu3O7?δ layers. The superconducting transition temperature Tc reaches a maximum value of 92.4 K as well as a narrow transition width of 0.8 K for the optimized GZO layer thickness. The inductive measurements show the critical current density as high as 1.2 MA/cm2 at 77 K in self-field, indicating that a GZO single buffer layer is a suitable alternative for simplifying the second generation high Tc superconducting coated conductors architecture. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|