Effects of Yttrium Oxide Inclusions on the Orientation and Superconducting Properties of YBCO Films
Keywords:
MOCVD, epitaxy, lattice mismatch, ordered nanostructure, HT-superconductor.Abstract
The formation of Y2O3 secondary phase in the films of YBa2Cu3O7 (YBCO) high-temperature
superconductor is of large interest because Y2O3 inclusions can increase the critical current
density (Jc) in YBCO films. We studied Y-rich and Y-poor YBCO films prepared by the MOCVD
method. Y2O3 phase appeared in the Y-rich films as small (20x10 nm) oriented particles distributed
throughout the YBCO films. It was found that at the same growth conditions Y-rich YBCO films grew
highly c-oriented, whereas in the Y-poor films both a- and c-oriented YBCO grains were present. The
Y-rich films exhibited better superconducting properties (Jc) because of better YBCO texture and
magnetic flux pinning on the Y2O3 inclusions
Downloads
Download data is not yet available.
References
Downloads
Published
2013-06-26
Issue
Section
Статьи
How to Cite
Effects of Yttrium Oxide Inclusions on the Orientation and Superconducting Properties of YBCO Films. (2013). Kondensirovannye Sredy I Mezhfaznye Granitsy = Condensed Matter and Interphases, 15(2), 91-98. https://journals.vsu.ru/kcmf/article/view/883
