MOCVD Synthesis of Thallium Superconductor Materials
Abstract
Superconducting films of Tl2Ba2Ca1Cu2Ox were produced on Al2O3 and LaAlO3 substrates via a two step process. Initially, an oxide precursor containing barium, calcium, and copper was deposited by either MOCVD or a chemical deposition process. Subsequently, thallium was added to the precursor by vapor transport from a solid source in order to form the superconducting phase. The chemical, physical, and superconducting properties of the resultant films were characterized. The quality of the films obtained from the two types of precursors appears to be equivalent. Highly c-axis oriented films of the 2212 phase were prepared on both substrate types.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1990
- Accession Number
- ADA225932
Entities
Organizations
- Sarnoff Corporation