Resonant interaction of a soliton (Josephson fluxon) with its self-generated Josephson plasma waves is studied experimentally, numerically, and analytically. An externally applied magnetic field H forms a cos-like potential relief for the soliton in the annular junction. Soliton motion under the influence of the bias current leads to an emission of plasma waves, which gives rise to a resonance at a certain soliton velocity. This resonance on the current-voltage characteristics shows a clear backbending accompanied by a negative differential resistance. Our analysis quantitatively explains the observed effect.
|Number of pages||2|
|Journal||Physica B: Condensed Matter|
|State||Published - 11 May 2000|
|Event||22nd International Conference on Low Temperature Physics (LT-22) - Helsinki, Finl|
Duration: 4 Aug 1999 → 11 Aug 1999