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Title: Controlling Josephson dynamics by strong microwave fields
Authors: Chesca, Boris
Savel'ev, Sergey
Rakhmanov, Alexander L.
Smilde, H.J.H.
Hilgenkamp, H.
Keywords: Superconductors
Issue Date: 2008
Publisher: © American Physical Society
Citation: CHESCA, B. ... et al, 2008. Controlling Josephson dynamics by strong microwave fields. Physical Review B, 78 (9), 6pp.
Abstract: We observe several sharp changes in the slope of the current-voltage characteristics CVCs of thin-film ramp-edge Josephson junctions between YBa2Cu3O7− and Nb when applying strong microwave fields. Such behavior indicates an intriguing Josephson dynamics associated with the switching from a parametric excitation regime induced by the magnetic field of the microwave via oscillations of the Josephson critical current to an ac-current-excitation regime triggered by the electric field of the microwave. We propose a model, which describes the observed features on the CVC in terms of microwave-induced multiple switching between running and locked solutions of sine-Gordon equation.
Version: Published
DOI: 10.1103/PhysRevB.78.094505
URI: https://dspace.lboro.ac.uk/2134/12886
Publisher Link: http://dx.doi.org/10.1103/PhysRevB.78.094505
ISSN: 1098-0121
Appears in Collections:Published Articles (Physics)

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