Influence of coupling between junctions on breakpoint current in intrinsic Josephson junctions

Abstract

We study theoretically the current-voltage characteristics of intrinsic Josephson junctions in high-$T_c$ superconductors. An oscillation of the breakpoint current on the outermost branch as a function of coupling $\alpha$ and dissipation $\beta$ parameters is found. We explain this oscillation as a result of the creation of longitudinal plasma waves at the breakpoint with different wave numbers. We demonstrate the commensurability effect and predict a group behavior of the current-voltage characteristics for the stacks with a different number of junctions. A method to determine the wave number of longitudinal plasma waves from $\alpha$- and $\beta$-dependence of the breakpoint current is suggested. We model the $\alpha$- and $\beta$-dependence of the breakpoint current and obtain good agreement with the results of simulation.

5 pages, 5 figures

Cited by in corpus (17)

• Terahertz Josephson plasma waves in layered superconductors: spectrum, generation, nonlinear, and quantum phenomena
• Structure of the breakpoint region in CVC of the intrinsic Josephson junctions
• Experimental manifestation of the breakpoint region in the current-voltage characteristics of intrinsic Josephson junctions
• Transiently enhanced interlayer tunneling in optically driven high $T_c$ superconductors
• Manifestation of Resonance-Related Chaos in Coupled Josephson Junctions
• Nonlocal long-range synchronization of planar Josephson junction arrays
• Thermal local quantum uncertainty in a two-qubit-superconducting system under decoherence
• Array of Josephson junctions with a non-sinusoidal current-phase relation as a model of the resistive transition of unconventional superconductors
• Charge creation and nucleation of longitudinal plasma wave in coupled Josephson junctions
• Experimental observation of the longitudinal plasma excitation in intrinsic Josephson junctions
• The c-axis charge traveling wave in coupled system of Josephson junctions
• Variety of c-axis collective excitations in layered multigap superconductors
• Dynamic properties of asymmetric double Josephson junction stack with quasiparticle imbalance
• Breathing Charge Density Waves in Intrinsic Josephson Junctions
• Optical control of the current-voltage relation in stacked superconductors
• Study of charge-phase diagrams for coupled system of Josephson junctions
• The largest Lyapunov exponent as a tool for detecting relative changes in the particle positions