Analysis of a Fractal Josephson Junction with Unharmonic Current-Phase Relation

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AuteurMONWANOU, VINCENT ADJIMON
AuteurSIFEU, TAKOUGANG
AuteurCHABI OROU, JEAN BIO
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2018
ResumeIn this paper, a fractal Josephson junction with unharmonic current-phase relation is analytically and numerically analyzed. This system has two, four, or no equilibrium points depending on the external direct current source and unharmonic parameter. The stability analysis of the equilibrium points is carried out. The inclusion of unharmonic current-phase relation in an ideal Josephson junction leads to an increase in the hysteresis of current-voltage characteristics. While the inclusion of fractal characteristics in insulating layer of Josephson junction with harmonic current-phase relation leads to a decrease in the hysteresis of current-voltage characteristics. The inclusion of unharmonic current-phase relation on a fractal Josephson junction leads to an increase in the hysteresis of current-voltage character- istics. The dynamical behavior map of fractal Josephson junction with unharmonic current-phase relation in amplitude and frequency of modulation current plane is depicted. For a suitable choice of modulation parameters of external current source, fractal Josephson junction with unharmonic current-phase relation can exhibit excitable mode, bistable oscillatory mode, and periodic and chaotic behaviors.
DOI10.1007/s10948-018-4967-2
Autre identifiantBECDB-7475
URIhttps://dspace.uac.bj/handle/123456789/6731
Languefr
Fait partie deJournal of Superconductivity and Novel Magnetism
SujetFractal Josephson junction . Unharmonic current-phase relation . Hysteresis . Current-voltage characteristics
SujetBistability . Chaotic behavior
TitreAnalysis of a Fractal Josephson Junction with Unharmonic Current-Phase Relation
TypeArticle

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