Comparison between experiment and perturbation theory for solitons in Josephson junctions

Journal Article · Thu Mar 01 04:00:00 EST 1984 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.29.2551· OSTI ID:7064309

Pedersen, N F; Welner, D

Experiments have been made on long inline and overlap Josephson junctions at various temperatures and current densities. The junctions had parameters such that the recently developed perturbation theory for soliton motion according to the modified sine-Gordon equation should be applicable. A comparison showed that this is the case, and the damping constant was derived as a function of the temperature. In addition, results were obtained for the soliton-antisoliton annihilation process. A fine structure in the zero-field steps at low temperatures is interpreted as being due to plasma oscillations in connection with soliton reflections at the boundaries.

• Research Organization: Physics Laboratory I, The Technical University of Denmark, DK-2800 Lyngby, Denmark
• OSTI ID: 7064309
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 29:5; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNIHILATION
BASIC INTERACTIONS
DAMPING
ELECTROMAGNETIC INTERACTIONS
ELEMENTS
EQUATIONS
FIELD EQUATIONS
INTERACTIONS
JOSEPHSON JUNCTIONS
JUNCTIONS
LEAD
METALS
MOTION
NIOBIUM
PERTURBATION THEORY
QUASI PARTICLES
SINE-GORDON EQUATION
SOLITONS
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENTS