Direct observation of the Riedel singularity in a superconducting point contact

Journal Article · Sat May 01 04:00:00 EDT 1976 · Appl. Phys. Lett., v. 28, no. 9, pp. 559-561

DOI:https://doi.org/10.1063/1.88823· OSTI ID:4060663

Vernet, G; Adde, R

An heterodyne detection of the Josephson current in the gap region is performed using the oscillator-mixer mode of operation in a superconducting point contact. The direct observation of the Riedel peak in a Josephson device is realized. The measured peak height (approx.3.5) in superconducting point contacts is of the same order of magnitude as for oxide barrier tunnel junctions. Consequently, strong similarities exist in the physical processes which occur in these two types of junctions and pair tunneling is believed to be a dominant mechanism in a point contact with Josephson behavior. (AIP)

• Research Organization: Institut d'Electronique Fondamentale, Laboratoires Associe au CNRS, Universite Paris XI, 91, Orsay, France
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-029008
• OSTI ID: 4060663
• Journal Information: Appl. Phys. Lett., v. 28, no. 9, pp. 559-561, Journal Name: Appl. Phys. Lett., v. 28, no. 9, pp. 559-561; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

*JOSEPHSON JUNCTIONS-- OPERATION
420201* --Engineering--Facilities & Equipment--Cryogenic & Superconducting Equipment & Devices
ENERGY GAP
JOSEPHSON EFFECT
N42220* --Engineering--Facilities & Equipment--Cryogenic & Superconducting Equipment & Devices
SINGULARITY
SUPERCONDUCTIVITY
TUNNEL EFFECT