Nonreciprocal transmission of microwaves through a long Josephson junction

A. L. Pankratov, K. G. Fedorov, M. Salerno, S. V. Shitov, and A. V. Ustinov
Phys. Rev. B 92, 104501 – Published 1 September 2015
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  • INTRODUCTION
  • STATEMENT OF THE PROBLEM AND…
  • INVESTIGATION OF THE EFFECT OF MATCHING
  • CONCLUSIONS
  • ACKNOWLEDGMENTS
    • References

    Abstract

    Nonreciprocal microwave transmission through a long Josephson junction in the flux-flow regime is studied analytically and numerically within the framework of the perturbed sine-Gordon model. We demonstrate that the maximum attenuation of the transmitted microwave power occurs when the direction of the flux flow is opposite the direction of the microwave propagation. This attenuation is nonreciprocal with respect to the flux-flow direction and can be enhanced by increasing the system length and proper impedance matching of the junction ends to the external transmission line.

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    • Received 3 December 2014

    DOI:https://doi.org/10.1103/PhysRevB.92.104501

    ©2015 American Physical Society

    Authors & Affiliations

    A. L. Pankratov1,2,3, K. G. Fedorov4,5,6, M. Salerno7, S. V. Shitov5,8, and A. V. Ustinov4,5

    • 1Institute for Physics of Microstructures, RAS, Nizhny Novgorod, 603950, Russia
    • 2Center of Cryogenic Nanoelectronics, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 603950 Nizhny Novgorod, Russia
    • 3IITMM, Lobachevsky State University of Nizhni Novgorod, 603950 Nizhny Novgorod, Russia
    • 4Physikalisches Institut, Karlsruhe Institute of Technology, D-76128 Karlsruhe, Germany
    • 5National University of Science and Technology MISIS, Leninsky prospekt 4, Moscow 119049, Russia
    • 6Walther-Meißer-Institut, Bayerische Akademie der Wissenschaften, D-85748 Garching, Germany
    • 7Dipartimento di Fisica “E. R. Caianiello,” CNISM and INFM Gruppo Collegato di Salerno, Universitá di Salerno, Italy
    • 8Kotelnikov Institute of Radio Engineering and Electronics, RAS, Moscow 125009, Russia

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    Issue

    Vol. 92, Iss. 10 — 1 September 2015

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