Abstract
Current-voltage characteristics of a long Josephson tunnel junction in a flux-flow state are studied theoretically as well as experimentally. A general analysis is made of the coupling of junction propagation modes due to the nonlinearity of the Josephson tunneling current which forms vortices. It is shown that a moving vortex array may induce a new type of current steps due to the parametric coupling between electromagnetic waves when the velocity of the moving vortex array coincides with a fraction of the characteristic velocity of the junction propagation modes. It is also shown that the height of the current step which arises when the velocities of moving vortices and electromagnetic waves coincide with each other may be two orders of magnitude smaller than that given by Eck et al. These theoretical results are well demonstrated by the experiment with long Pb–PbOx–Pb Josephson tunnel junctions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
