Abstract
Josephson junction (JJ) with topologically nontrivial barrier is analytically and numerically analyzed in this paper. This system has four, two, or no equilibrium points depending on the external direct current (DC) source and the fractional parameter. The existence of pitchfork bifurcation is established during the stability analysis of the equilibrium points. The inclusion of fractional parameter in JJ leads to an increase in the hysteresis loop of current-voltage characteristics. For a suitable choice of modulation parameters of external current source, JJ with topologically nontrivial barrier can display excitable mode, bistable, periodic and chaotic behaviors.
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Kingni, S.T., Cheukem, A., Chamgoué, A.C. et al. Analysis of Josephson junction with topologically nontrivial barrier. Eur. Phys. J. B 93, 143 (2020). https://doi.org/10.1140/epjb/e2020-10125-3
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DOI: https://doi.org/10.1140/epjb/e2020-10125-3