Picosecond switching dynamics of a Josephson tunnel junction
Conference
·
· IEEE Trans. Magn.; (United States)
OSTI ID:6090616
The authors have modeled their previously reported switching measurements of a tunnel junction excited by photogenerated-picosecond-current pulses. The junction was found to be switching from the zero- to the finite-voltage regime for subcritical current pulses and the results were modeled with a critical charge concept. The present study shows that in addition to pulse charge, pulse rise time is a critical parameter in determining the junction response. Simulations were performed using exponentially rising and falling pulses to simulate the experimentally measured waveform. Significant deviations from dc behavior were found. Pulse rise time is in fact the parameter which causes the onset of the observed chaos in these devices. Pulse fall time was shown to have no effect, which is consistent with the critical rise time interpretation.
- Research Organization:
- 9500714; 9520245
- OSTI ID:
- 6090616
- Report Number(s):
- CONF-880812-
- Conference Information:
- Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: 25:2
- Country of Publication:
- United States
- Language:
- English
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656100 -- Condensed Matter Physics-- Superconductivity
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
CRITICAL CURRENT
CURRENTS
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ELECTRIC CURRENTS
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656100 -- Condensed Matter Physics-- Superconductivity
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
CRITICAL CURRENT
CURRENTS
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DYNAMICS
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INFORMATION
JOSEPHSON JUNCTIONS
JUNCTIONS
MEASURING METHODS
MECHANICS
NUMERICAL DATA
PARAMETRIC ANALYSIS
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SUPERCONDUCTING JUNCTIONS
SWITCHING CIRCUITS
TUNNELING