SUBHARMONIC SELF-LOCKING OF A JOSEPHSON SOLITON OSCILLATOR COUPLED TO A RESONATOR
|Title||SUBHARMONIC SELF-LOCKING OF A JOSEPHSON SOLITON OSCILLATOR COUPLED TO A RESONATOR|
|Publication Type||Conference Proceedings|
|Year of Publication||1992|
|Authors||Holm, J., Barbara P., Davidson A., Filatrella G., Mygind J., and Pedersen N. F.|
|Conference Name||NATO Advanced Study Institute on Future Directions of Nonlinear Dynamics in Physical and Biological Systems, in honor of Alwyn Scotts 60th Birthday|
|Conference Location||Lyngby, Denmark|
Josephson soliton oscillators integrated in a resonator consisting of two closely spaced superconducting microstrips have been investigated experimentally. The dc IV-characteristic shows zero-field steps containing a number of resonator-induced substeps, occurring because of locking of the soliton oscillator to the resonator. The position of the substeps follows the structure of a ''devil's staircase'', and their appearance depends strongly on the externally applied dc magnetic field.