Vortex dynamics controlled by pinning centers on Nb superconductor open microtubes

R. O. Rezaev, V. M. Fomin, O. G. Schmidt

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Vortex dynamics on a Nb superconductor open microtube are studied theoretically taking into account the impact of single and multiple pinning centers. These dynamics are described by two characteristic times: the period of nucleation of vortices at one edge of the tube and the duration of motion of a vortex along the tube. Simulation reveals that the both characteristic times change by a factor of up to two due to the presence of pinning centers. Different regimes of vortex dynamics are effectively controlled by varying positions of pinning centers at given values of the applied magnetic field, the tube radius and the transport current orthogonal to the tube axis. An experimental detection of the tube curvature effects on vortex dynamics stays feasible in the presence of pinning centers.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume497
DOIs
Publication statusPublished - 1 Jan 2014

Fingerprint

Superconducting materials
Vortex flow
vortices
tubes
guy wires
Nucleation
curvature
nucleation
Magnetic fields
radii
magnetic fields
simulation

Keywords

  • Flux pinning
  • Nanostructured materials
  • Niobium
  • Type II superconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Vortex dynamics controlled by pinning centers on Nb superconductor open microtubes. / Rezaev, R. O.; Fomin, V. M.; Schmidt, O. G.

In: Physica C: Superconductivity and its Applications, Vol. 497, 01.01.2014, p. 1-5.

Research output: Contribution to journalArticle

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