Self-resonant modes in Nb-NbOx-Pb Josephson junctions

Journal Article · Sat Apr 01 04:00:00 EST 1978 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.325091· OSTI ID:7277514

Paterno, G; Nordman, J

Measurements of the magnetic field dependence of Fiske steps and ''zero-field'' steps in Nb-Nb oxide-Pb Josephson junctions are described. By the use of a simple variable dc bias scheme, the measured ac volt-ampere characteristics are made to clearly exhibit the step structure even in the presence of a large dc Josephson current. A comparison with the theory of Kulik for the magnetic field dependence of Fiske steps is shown and the correlation is very good for small L/lambda/sub j/ ratios. Deviations for larger ratios include the appearance of zero-field steps.

• Research Organization: C.N.E.N., Div. Nuove Attivita, Centro di Frascati, C.P. 65, 00044 Frascati, Italy
• OSTI ID: 7277514
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 49:4; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAVITY RESONATORS
CHALCOGENIDES
ELEMENTS
FILMS
JOSEPHSON JUNCTIONS
LEAD
MAGNETIC FIELDS
METALS
NIOBIUM
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PENETRATION DEPTH
REFRACTORY METALS
RESONANCE
SUPERCONDUCTING CAVITY RESONATORS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS