Resonator coupled Josephson junctions; Parametric excitations and mutual locking

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6047695

Jensen, H D ^[1]; Larsen, A ^[2]; Mygind, J ^[3]

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1. Danish Inst. of Fundamental Metrology, DK-2800 Lyngby (DK)
2. Physikalisch-Technische Bundesanstalt, D-3300 Raunschweig (DE)
3. Physics Lab., B 309, Technical Univ. of Denmark, DK-2800 Lyngby (DK)

This paper reports on self-pumped parametric excitations and mutual locking in systems of Josephson tunnel junctions coupled to multi-mode resonators. For the very large values of the coupling parameter, obtained with small Nb--Al{sub 2}O{sub 3}--Nb junctions integrated in superconducting microstrip resonators, the dc IV-characteristic shows an equidistant series of current-steps generated by subharmonic pumping of the fundamental resonator mode. This is confirmed by measurements of frequency and linewidth of the emitted Josephson radiation.

• OSTI ID: 6047695
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMPLIFIERS
CHALCOGENIDES
COUPLING
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FREQUENCY MEASUREMENT
INTEGRATED CIRCUITS
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
JUNCTIONS
METALS
MICROELECTRONIC CIRCUITS
MODE LOCKING
NIOBIUM
OXIDES
OXYGEN COMPOUNDS
PARAMETRIC AMPLIFIERS
RESONATORS
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENTS