Tunable oscillator using pulsons on large-area lossy Josephson junctions

Journal Article · Wed Jul 15 00:00:00 EDT 1981 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.92651· OSTI ID:6204851

Christiansen, P L; Lomdahl, P S; Zabusky, N J

A tunable resonator in the gigahertz-range using circular sine-Gordon fluxons or pulsons on a lossy large-area Josephson junction with a circular impurity in the Josephson current density is proposed. To obtain steady tunable oscillations in a lossy medium, one must supply energy (''negative'' resistance). We propose to control the constant bias current with an autonomous pulson velocity-sensitive switch. One possibility for fine tuning the oscillations is to vary the strength of the Josephson impurity current.

• Research Organization: Laboratory of Applied Mathematical Physics, The Technical University of Denmark, DK-2800 Lyngby, Denmark
• OSTI ID: 6204851
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 39:2; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONTROL
CURRENT DENSITY
ELECTRONIC EQUIPMENT
ENERGY LOSSES
EQUATIONS
EQUIPMENT
FIELD EQUATIONS
FREQUENCY RANGE
GHZ RANGE
JOSEPHSON JUNCTIONS
JUNCTIONS
LOSSES
OSCILLATORS
RESONATORS
SINE-GORDON EQUATION
SUPERCONDUCTING JUNCTIONS
TUNING