Synthesis and Study of Materials for Superconducting Electronics.
Abstract
Study of high-Tc superconductors in single-crystal and thin film form has begun. Investigation of semiconductor tunnel barriers has led to improvement of their theoretical description. Transport measurements of layered films of transition metal nitrides showed evidence of spin-orbit scattering and dimensional crossover effects. A technique for analyzing tunneling conductances to obtain the amount of Zeeman splitting using Fourier transforms has been developed and applied to V3Ga tunneling data. Spin-orbit scattering rates measured by two independent techniques, spin-polarized tunneling and magnetoresistance, have been shown to be similar. The strength of Fermi-liquid corrections on the effective magnetic moment of conduction electrons in vanadium and gallium has been found using spin-polarized tunneling. The effect of spin-orbit scattering on the density of states of superconducting thin films has been measured. The superconducting properties of ultra-thin niobium films were studied.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 27, 1988
- Accession Number
- ADA195279
Entities
People
- P. M. Tedrow
- R. Meservey
- T. P. Orlando
Organizations
- Massachusetts Institute of Technology