Analysis of Josephson junction with topologically nontrivial barrier

Sifeu Takougang Kingni (), André Cheukem, André Cheage Chamgoué and Fulbert Togue Kamga
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Sifeu Takougang Kingni: Petroleum and Gas Engineering, Faculty of Mines and Petroleum Industries, University of Maroua
André Cheukem: Research Unit of Automation and Applied Computer, Electrical Engineering Department of IUT-FV, University of Dschang
André Cheage Chamgoué: School of Geology and Mining Engineering, University of Ngaoundere
Fulbert Togue Kamga: Institute of Fisheries and Aquatic Sciences at Yabassi, University of Douala

The European Physical Journal B: Condensed Matter and Complex Systems, 2020, vol. 93, issue 8, 1-5

Abstract: 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. Graphical abstract

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (1)

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DOI: 10.1140/epjb/e2020-10125-3

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