Fluxons and Order in Long Josephson Junctions.
Abstract
The behavior of fluxons was studied in all-niobium long Josephson Junctions. We have investigated fluctuations due to fluxon motions between bistable states. Such fluctuations show Lorentzian spectra with characteristic times ranging form 10 milliseconds to 1 microsecond. We have analyzed instabilities in the current steps of hte I-V characteristics in terms of intermittency between periodic solutions and unstable behavior leading to chaos. The effects of boundaries were investigated as to the gain and fluctuations of long Josephson junctions. Ultrasonic radiation was used to study fluxon pinning problems. Experiments are proposed for the next period. They deal with fundamental questions such as fluctuations, tunneling, and boundary conditions, affecting the performance of the junctions and their applications. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 29, 1986
- Accession Number
- ADA177016
Entities
People
- Orest G. Symko
Organizations
- University of Utah