Abstract
We study the current–voltage characteristics of intrinsic Josephson junctions in high-Tc superconductors by numerical calculations and in framework of capacitively coupled Josephson junctions model we obtain the total number of branches. The influence of the coupling parameter α on the current–voltage characteristics at fixed parameter β (β2=1/βc, where βc is McCumber parameter) and the influence of α on β-dependence of the current–voltage characteristics are investigated. We obtain the α-dependence of the branch’s slopes and branch’s endpoints. The presented results show new features of the coupling effect on the scheme of hysteresis jumps in current–voltage characteristics of intrinsic Josephson junctions in high-Tc superconductors.
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