Dynamics of the Abrikosov Vortices on Cylindrical Microtubes

R. O. Rezaev, E. A. Levchenko, O. G. Schmidt, V. M. Fomin

Результат исследований: Материалы для журналаСтатья

2 Цитирования (Scopus)


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.

Язык оригиналаАнглийский
Страницы (с-по)623-628
Число страниц6
ЖурналRussian Physics Journal
Номер выпуска5
СостояниеОпубликовано - 1 сен 2015

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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