Superconducting thin films of TBCCO have been prepared directly on R-plane sapphire substrates and on CeO2 buffer layers on sapphire. The superconducting properties of the films on the buffered sapphire are quite encouraging, with Jc values in excess of 5.104 A/cm2. However, a potential problem with this buffer layer has been identified; the formation of a BaCeO3 layer by reaction of the superconducting film with the CeO2.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering