Low Temperature Physics: 28, 1 (2002); https://doi.org/10.1063/1.1449177 (5 pages)
Физика Низких Температур: Том 28, Выпуск 1 (Январь 2002), c. 3-9 ( к оглавлению , назад )
Temperature-dependent resistance of a finite one-dimensional Josephson junction array
Klas Engström and Jari M. Kinaret
Department of Applied Physics, Chalmers University of Technology and Göteborg University SE-412 96 Göteborg, Sweden
Received August 27, 2001
We study theoretically the temperature and array-length dependences of the resistance of a finite one-dimensional array of Josephson junctions. We use both analytic approximations and numerical simulations, and conclude that within the self-charging model, all finite arrays are resistive in the low-temperature limit. A heuristic analysis shows qualitative agreement
with resistance obtained from Monte Carlo simulations, establishing a connection between resistance and the occurrence of vortices in the corresponding 1 +1D XY-model. We compare our results with recent experiments and conclude that while the self-charging model reproduces some of the experimental observations, it underestimates the superconducting tendencies in the experimental structures.