Fabrication and properties of high J /SUB c/ lead-alloy Josephson junctions

Journal Article · Sat Jan 01 00:00:00 EST 1983 · IEEE Trans. Electron Devices; (United States)

DOI:https://doi.org/10.1109/T-ED.1983.21068· OSTI ID:5992514

Tarutani, Y; Van Duzer, T

High-current critical/density lead-alloy tunnel junctions were fabricated with junction areas of less than 1 ..mu..m/sup 2/. The relationship of junction quality, minimum resetting current I /SUB m/ , and energy-gap reduction to current critical/density J /SUP c/ are investigated experimentally. The J /SUP c/ dependence of I /SUP m/ is calculated taking into account the experimentally obtained quasi-particle current. The energy-gap reduction in high- J /SUP c/ junctions is explained by calculating the nonequilibrium quasi-particle distribution in the junction area. These calculated results are compared with the experimental data.

• Research Organization: Central Research Lab., Hitachi Ltd., Kokubunji, Tokyo
• OSTI ID: 5992514
• Journal Information: IEEE Trans. Electron Devices; (United States), Vol. 30:1
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
JOSEPHSON JUNCTIONS
CRITICAL CURRENT
ENERGY DENSITY
ENERGY GAP
EXPERIMENTAL DATA
FABRICATION
LEAD ALLOYS
PARTICLE KINEMATICS
PHYSICAL PROPERTIES
QUASI PARTICLES
TUNNEL EFFECT
ALLOYS
CURRENTS
DATA
ELECTRIC CURRENTS
INFORMATION
JUNCTIONS
NUMERICAL DATA
SUPERCONDUCTING JUNCTIONS
420800* - Engineering- Electronic Circuits & Devices- (-1989)
360100 - Metals & Alloys