Phase sticking in one-dimensional Josephson junction chains
Phase sticking in one-dimensional Josephson junction chains
We studied current-voltage characteristics of long one-dimensional Josephson junction chains with Josephson energy much larger than charging energy, ${E}_{J}\ensuremath{\gg}{E}_{C}$. In this regime, typical I-V curves of the samples consist of a supercurrent-like branch at low-bias voltages followed by a voltage-independent chain current branch, ${I}_{\mathrm{chain}}$ at high bias. Our experiments showed …