Current-voltage characteristics of a four-terminal superconducting weak link
The current-voltage characteristics of a new type of Josephson-like junction consisting of four superconductors in connection with a common region via separate weak links are investigated. This arrangement permits strong interaction and proximity effects to occur inside the composite junction, and the observed variations in the I--V curves can be explained mainly in terms of an exchange of dc and ac quasiparticle currents between phase-slip centers. In particular, direct frequency locking among three Josephson oscillators and induced dc voltage in a unbiased junction have been found for the first time. These effects are of interest for considerations of developing large-scale integrated superconducting circuits.
- Research Organization:
- Department of Physics, State University of New York at Stony Brook, Stony Brook, New York
- OSTI ID:
- 7022740
- Journal Information:
- J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 54:5; ISSN JLTPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
CURRENTS
DATA
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTRON BEAMS
EXPERIMENTAL DATA
INFORMATION
JOSEPHSON JUNCTIONS
JUNCTIONS
LEPTON BEAMS
NUMERICAL DATA
ORDER PARAMETERS
PARTICLE BEAMS
PHYSICAL PROPERTIES
PROXIMITY EFFECT
QUASI PARTICLES
SUPERCONDUCTING JUNCTIONS
TUNNEL EFFECT