Millimeter-wave-induced fluxon pair creation in flux-flow Josephson oscillators

A. V. Ustinov, Jesper Mygind, Niels Falsig Pedersen, V. A. Oboznov

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We now observe a new type of dynamical state in long Josephson junctions. Millimeter-wave irradiation in the frequency range fext=62–77 GHz, was applied to a long junction biased in the flux-flow mode. Besides an ordinary flux-flow step satellite, flux-flow steps with voltage spacing corresponding to 2fext were observed. The dependence of the amplitude of the satellite steps on external magnetic field and microwave power was measured. An explanation of the satellite steps as mixing products due to the microwave-assisted reflection of fluxons into antifluxons at the junction boundary is presented.
Original languageEnglish
JournalPhysical Review B
Issue number1
Pages (from-to)578-580
Publication statusPublished - 1992

Bibliographical note

Copyright (1992) by the American Physical Society.


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