Fluxons and order in long Josephson junctions. Annual report, November 1985-November 1986
The behavior of fluxons was studied in all-niobium long Josephson Junctions. Fluctuations due to fluxon motions between bistable states were investigated, showing Lorentzian spectra with characteristic times ranging form 10 milliseconds to 1 microsecond. Instabilities in the current steps of the I-V characteristics were analyzed 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.
- Research Organization:
- Utah Univ., Salt Lake City (USA). Dept. of Physics
- OSTI ID:
- 6604921
- Report Number(s):
- AD-A-177016/3/XAB
- Country of Publication:
- United States
- Language:
- English
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