A. Kanda et Si. Kobayashi, EFFECT OF SELF-CAPACITANCE ON CHARGE KOSTERLITZ-THOULESS TRANSITION IN SMALL TUNNEL-JUNCTION ARRAYS, Journal of the Physical Society of Japan, 64(9), 1995, pp. 3172-3174
We have studied the self-capacitance dependence of zero-bias resistanc
e in two-dimensional arrays of highly resistive small tunnel junctions
. Deviation from the square-root-cusp behavior is more prominent in ar
rays with smaller screening length. The results suggest that the finit
eness of the screening length is responsible for disappearance of the
charge Kosterlitz-Thouless (KT) transition in these arrays.