Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1820866 | Physica C: Superconductivity and its Applications | 2007 | 5 Pages |
Abstract
A new single buffer layer YBiO3 has been proposed for YBCO coated conductors. Highly c-axis oriented YBiO3 buffer layer has been deposited on single crystal LaAlO3 by a low-cost chemical solution deposition method in a temperature range as low as 730-800 °C in air. A very dense, smooth, pinhole-free morphology has been observed for YBiO3 buffer layer. Dense, homogeneous and epitaxially grown YBCO film has been obtained with its onset critical temperature 90 K and Jc (77 K, 0 T) = 3.1 MA/cm2. The addition of Bi2O3, which melts at around 817 °C, has been argued to be responsible for the densification as well as low-process temperature of YBiO3 buffer layer. These results offer an alternative to prepare desirable buffer layer(s) for YBCO coated conductors via a cost-effective and easily scalable route.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Guo Li, Minghua Pu, Xiaohua Du, Yanbing Zhang, Huaming Zhou, Yong Zhao,