Dynamics of an annular Josephson junction in a rotating magnetic field | Zendy

Niels GrønbechJensen | Zendy; Boris A. Malomed | Zendy; M. R. Samuelsen | Zendy

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Dynamics of an annular Josephson junction in a rotating magnetic field

Author(s) -

Niels GrønbechJensen,

Boris A. Malomed,

M. R. Samuelsen

Publication year - 1992

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.46.294

Subject(s) - fluxon , physics , josephson effect , magnetic field , superposition principle , condensed matter physics , perpendicular , phase (matter) , dynamics (music) , field (mathematics) , pi josephson junction , classical mechanics , superconductivity , quantum mechanics , geometry , mathematics , acoustics , pure mathematics

We study analytically and numerically the dynamics of a solitary fluxon in a long annular damped Josephson junction placed into a rotating magnetic field, which is produced by superposition of two mutually perpendicular ac fields with a phase difference of π/2. We demonstrate that the rotating magnetic field drives the fluxon as a traveling wave. The step in the I-V characteristic, corresponding to the velocity of the fluxon coinciding with the phase velocity of the driving wave, is predicted and its size is calculated. It is also demonstrated that the I-V curve has a parabolic profile near the edges of the step

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