Observation of the Josephson effect in Nb/sub 3/Ge Dayem bridges. Technical report

Technical Report · Mon Mar 17 00:00:00 EDT 1975

OSTI ID:7365372

Janocko, M A; Gavaler, J R; Jones, C K

Dayem bridge Josephson junctions were successfully fabricated for the first time from sputtered thin films of high-T/sub c/ Nb/sub 3/Ge. Microwave induced current steps were observed in the I--V characteristic of one of these junctions at a frequency of 10 GHz at temperatures between 20.9 and 21.0/sup 0/K. This junction was fabricated by a mechanical scribing technique instead of sputter etching. Sputter etched junctions also exhibited Josephson steps, but only at much lower temperatures, due to a depression of T/sub c/ by the sputter etching process.

• Research Organization: Westinghouse Research Labs., Pittsburgh, Pa. (USA)
• OSTI ID: 7365372
• Report Number(s): AD/A-007571
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CRYOGENICS
ELECTROMAGNETIC RADIATION
FABRICATION
FILMS
GERMANIUM ALLOYS
JOSEPHSON JUNCTIONS
MICROWAVE RADIATION
NIOBIUM ALLOYS
PERFORMANCE
RADIATIONS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS