Advanced Thin-Film Deposition and Physical Properties of High- Temperature and Other Novel Superconducting Materials
Abstract
Progress under AFOSR Contract F49620-92-C-0004 for the period 15 October 1991 to 31 October 1992 is reported. Important results include studies of the grain boundaries in a-axis oriented high-Tc superconducting 123 YBCO thin films, the study of the vortex properties of high-Tc single crystals of the superconductor 2212 BSCCO and the artificially structured Mo-Ge/Ge quasi-two- dimensional superconductors. The latter provide an outstanding model system for the study of vortices in highly anisotropic superconductors, such at the high-Tc cuprates, without all the attendant difficult materials problems. Progress in the synthesis and study of the so-called infinite layer cuprate SrCuO4 and the normally conducting oxide SrRuO3 of interest as a barrier materials in high-Tc SNS devices are also reported. Finally we report the development of advanced approaches to rate control of the cation fluxes in the reactive coevaporation of the high-Tc superconductors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 03, 1993
- Accession Number
- ADA268199
Entities
People
- A. Kapitulnik
- Malcolm Beasley
- Theodore H. Geballe
Organizations
- Stanford University