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Dynamics of the Abrikosov Vortices on Cylindrical Microtubes

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Russian Physics Journal Aims and scope

We consider the special features at nano- and microscales of the vortex dynamics on superconducting cylindrical Nb tubes produced by the roll-up (self-rolling) technique. A transport current enters the tube through electrodes placed on both sides of a cut (in the paraxial direction) of the tube. The system is in the magnetic field perpendicular to the tube axis. The vortex dynamics is described by means of characteristic times: time (Δt1) needed for a vortex to move from one edge of the tube to another and time (Δt2) between two consecutive vortex nucleation events at one edge of the tube. A range of magnetic field values is analyzed where Δt1 as a function of the magnetic field has a highly nonlinear and non-monotonic behavior. For certain values of the magnetic field, two different trajectories are possible for a moving vortex, i.e., a bifurcation phenomenon occurs. We explain the reason of this bifurcation.

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Correspondence to R. O. Rezaev.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 35–40, May, 2015.

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Rezaev, R.O., Levchenko, E.A., Schmidt, O.G. et al. Dynamics of the Abrikosov Vortices on Cylindrical Microtubes. Russ Phys J 58, 623–628 (2015). https://doi.org/10.1007/s11182-015-0542-5

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  • DOI: https://doi.org/10.1007/s11182-015-0542-5

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