Architecture, microstructure and J(c) anisotropy of highly oriented biaxially textured Co-doped BaFe2As2 on Fe/IBAD-MgO-buffered metal tapes

作者：Trommler S^*; Haenisch J; Matias V; Huehne R; Reich E; Iida K; Haindl S; Schultz L; Holzapfel B

来源：Superconductor Science and Technology, 2012, 25(8): 084019.

DOI：10.1088/0953-2048/25/8/084019

Optimized, biaxially textured BaFe1.8Co0.2As2 thin films with an in-plane alignment of 1.7 degrees have been realized on high-quality IBAD-textured MgO-coated technical substrates utilizing additional Fe buffer layers. High critical current densities (J(c)) were achieved, comparable to films on single crystalline MgO (J(c) >= 1 MA cm(-2) at 4 K, self-field). Transmission electron microscopy investigations reveal a small number of c-axis correlated defects introduced by the MgO template.

• 出版日期2012-8