G. Filatrella et Nf. Pedersen, Radio-frequency properties of stacked long Josephson junctions with nonuniform bias current distribution, J APPL PHYS, 85(9), 1999, pp. 6904-6906
We have numerically investigated the behavior of stacks of long Josephson j
unctions considering a nonuniform bias profile. In the presence of a microw
ave field the nonuniform bias, which favors the formation of fluxons, can g
ive rise to a change of the sequence of radio-frequency induced steps. The
amplitude of the steps is enhanced when the external frequency matches the
fluxon shuttling regime. (C) 1999 American Institute of Physics. [S0021-897
9(99)05507-3].