One-third (period three) harmonic generation in microwave-driven Josephson tunnel junctions

One-third harmonic signals have been generated in the zero voltage state of a Josephson tunnel junction driven with a microwave current in the frequency range 8–20 GHz. The signal was as much as 50 dB above the noise level of the detector with a linewidth of less than 100 Hz. The junction parameters...

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Bibliographic Details
Published in:Applied physics letters 1986-12, Vol.49 (25), p.1744-1746
Main Authors: HANSEN, J. B, CLARKE, J, MYGIND, J, OVSYANNIKOV, G. A, SVENSMARK, H
Format: Article
Language:English
Subjects:
Applied sciences
Electronics
Exact sciences and technology
Other techniques and industries
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Superconducting devices
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Summary:One-third harmonic signals have been generated in the zero voltage state of a Josephson tunnel junction driven with a microwave current in the frequency range 8–20 GHz. The signal was as much as 50 dB above the noise level of the detector with a linewidth of less than 100 Hz. The junction parameters and microwave current were measured in situ in separate experiments. The subharmonic generation occurred for ranges of microwave current and frequency that were in reasonable agreement with the results of digital computer simulations.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.97234