Real time fluxon dynamics in Josephson transmission line

Conference · Fri Mar 01 04:00:00 EST 1985 · IEEE Trans. Magn.; (United States)

OSTI ID:6497188

Akoh, H; Hayakawa, H; Sakai, S; Yagi, A

Dynamics of fluxons propagating in a Josephson transmission line (JTL) have been studied in real time using Josephson sampling techniques. A JTL is an NbNoxide-NbN Josephson junction with dimensions of 2.5 x 150 ..mu../sup 2/, while Josephson samplers and pulse generators for generating and driving fluxons are fabricated by a Pb-alloy technology. Among the various behaviors, especially, it is found that a propagating fluxon can be made to pause without reflections at any desired position which is created by placing a resistor on the surface of a portion of a JTL. The surface resistor has a length larger than the Josephson penetration depth. A pausing fluxon can be re-driven by supplying a small current to the portion of the surface resistor after more than 100 ..mu..s, The experimental results are compared with computer simulations. Reflections of fluxons observed by samplers have also been discussed.

• Research Organization: Electrotechnical Laboratory, Sakura-mura, Niihari-gun, Ibaraki
• OSTI ID: 6497188
• Report Number(s): CONF-840937-
• Conference Information: Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG-21:2
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CABLES
COMPUTERIZED SIMULATION
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTRODYNAMICS
ELECTRONIC EQUIPMENT
EQUIPMENT
FUNCTION GENERATORS
JOSEPHSON JUNCTIONS
JUNCTIONS
MAGNETIC FLUX
PERFORMANCE
POWER TRANSMISSION LINES
PULSE GENERATORS
RESISTORS
SIMULATION
SUPERCONDUCTING CABLES
SUPERCONDUCTING JUNCTIONS