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arXiv · 1408.1541

Phase dynamics and IV-characteristics of two parallel stacks of coupled Josephson junctions

Yu. M. Shukrinov·I. R. Rahmonov·A. Plecenik·M. Grajcar·P. Seidel·E. Il'ichev·W. Nawrocki
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Abstract

Two parallel stacks of coupled Josephson junctions are investigated to clarify the physics of transitions between the rotating and oscillating states and their effect on the IV-characteristics of the system. The detailed study of phase dynamics and bias dependence of the superconducting and diffusion currents allows one to explain all features of simulated IV-characteristics and demonstrate the correspondence in their behavior. The coupling between JJ in the stacks leads to the branching of IV-characteristics and a decrease in the hysteretic region. The crucial role of the diffusion current in the formation of the IV-characteristic of the parallel stacks of coupled Josephson junctions is demonstrated. We discuss the effect of symmetry in a number of junctions in the stacks and show a decrease of the branching in the symmetrical stacks. The observed effects might be useful for development of superconducting electronic devices based on intrinsic Josephson junctions.

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Yu. M. Shukrinov, I. R. Rahmonov, A. Plecenik, M. Grajcar, P. Seidel, E. Il'ichev, W. Nawrocki. 2014-08-07. Phase dynamics and IV-characteristics of two parallel stacks of coupled Josephson junctions. https://arxiv.org/abs/1408.1541

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