Rd. Bock et al., INFLUENCE OF INDUCED MAGNETIC-FIELDS ON THE STATIC PROPERTIES OF ONE-DIMENSIONAL PARALLEL JOSEPHSON-JUNCTION ARRAYS, Physical review. B, Condensed matter, 49(14), 1994, pp. 10009-10012
With use of numerical simulation we investigate the influence of self-
fields on the static properties of one-dimensional parallel arrays of
Josephson junctions. We determine the currents and fields around a vor
tex, and the critical current versus magnetic field when the mutual in
ductances between all cell pairs are included. We find that for these
static properties a good approximation can be obtained by using self-i
nductances only, but with a larger effective penetration depth which i
s determined by the ratio of the nearest-neighbor inductance to the se
lf-inductance of the loops. We also find that for small penetration de
pths there is an energy barrier for vortex motion from one cell to the
next but inclusion of all the mutual inductances only has a minor inf
luence on this energy barrier.