On some effects in a system of two interacting Josephson junctions

Mineev, M. B.; Mkrtchyan, G. S.; Schmidt, Volker

doi:10.1007/bf00654496

Cited by 69 publications

(16 citation statements)

References 4 publications

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“…͑2͒ is assumed to be of the form 1 ϭ 0 ϩ 1 ,where 1 Ӷ 0 .The well-known result for this case represents the appearance of a flux flow step ͑FFS͒ on the IVC: 25,26 …”

Section: B Temperature Gradientmentioning

confidence: 99%

Fluxon dynamics in long Josephson junctions in the presence of a temperature gradient or spatial nonuniformity

1997

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Fluxon dynamics in nonuniform Josephson junctions was studied both experimentally and theoretically. Two types of nonuniform junctions were considered: the first type had a nonuniform spatial distribution of critical and bias currents and the second had a temperature gradient applied along the junction. An analytical expression for the I-V curve in the presence of a temperature gradient or spatial nonuniformity was derived. It was shown that there is no static thermomagnetic Nernst effect due to Josephson fluxon motion despite the existence of a force pushing fluxons in the direction of smaller self-energy ͑from the cold to the hot end of the junction͒. A phenomenon, the ''zero crossing flux flow step'' ͑ZCFFS͒ with a nonzero voltage at a zero applied current, was observed in nonuniform long Josephson junctions. The phenomenon is due to the existence of a preferential direction for the Josephson vortex motion. ZCFFS's were observed at certain magnetic fields when the critical current in one direction but not the other becomes zero. Possible applications of nonuniform Josephson junctions in flux flow oscillators and as a superconducting diode are discussed.

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“…͑2͒ is assumed to be of the form 1 ϭ 0 ϩ 1 ,where 1 Ӷ 0 .The well-known result for this case represents the appearance of a flux flow step ͑FFS͒ on the IVC: 25,26 …”

Section: B Temperature Gradientmentioning

confidence: 99%

Fluxon dynamics in long Josephson junctions in the presence of a temperature gradient or spatial nonuniformity

1997

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“…12, but the basic ideas can already be found in other precedent works such as in Ref. 13. In it they suppose the interaction between junctions acts through the magnetic field penetration in the superconducting layers.…”

Section: Continuous Case: Stacked Junctionsmentioning

confidence: 99%

Comparative dynamics of two-dimensional shorted arrays and continuous stacked Josephson junctions

et al. 1997

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“…9 Special care has to be taken in the study of stacked junctions as compared to a single junction due to the interaction effect between the stacked junctions. This interaction was first studied in the case of two junctions by Mineev et al 10 and later it was widely investigated. [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] The symmetry between the two equations in the case of two junctions may hide some important aspects of the fluxon motion.…”

Section: Introductionmentioning

confidence: 99%

Fluxons and their interactions in a system of three stacked Josephson junctions

et al. 2003

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Fluxon dynamics in a system of three coupled driven damped sine-Gordon equations is investigated. Bunching of fluxons is observed. It is shown that fluxon-fluxon-fluxon bound states exist in a certain interval of the fluxon velocity. Attraction between fluxons occurs as a result of indirect fluxon-fluxon interaction mediated by Swihart waves. To tackle the problem analytically a piece-wise linear approach is developed. The analytical approximations show good agreement with the results obtained by direct numerical simulations.

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On some effects in a system of two interacting Josephson junctions

Cited by 69 publications

References 4 publications

Fluxon dynamics in long Josephson junctions in the presence of a temperature gradient or spatial nonuniformity

Fluxon dynamics in long Josephson junctions in the presence of a temperature gradient or spatial nonuniformity

Comparative dynamics of two-dimensional shorted arrays and continuous stacked Josephson junctions

Fluxons and their interactions in a system of three stacked Josephson junctions

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