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Article
Configuration-induced vortex motion in type-II superconducting films with periodic magnetic dot arrays
Australian Institute for Innovative Materials - Papers
  • Q H Chen, University of Wollongong
  • Dongqi Shi, University of Wollongong
  • W X Li, University of Wollongong
  • B Y Zhu, Chinese Academy of Sciences
  • V V Moshchalkov, Catholic University of Leuven
  • S X Dou, University of Wollongong
RIS ID
89891
Publication Date
1-1-2014
Publication Details

Chen, Q. H., Shi, D. Q., Li, W. X., Zhu, B. Y., Moshchalkov, V. V. & Dou, S. X. (2014). Configuration-induced vortex motion in type-II superconducting films with periodic magnetic dot arrays. Superconductor Science and Technology, 27 (6), 1-8.

Abstract
Using the molecular dynamic method we investigate numerically the current driven vortex motion in a superconducting film with periodic arrays of both ferromagnetic (FM) and anti-parallel ferromagnetic (AFM) dots. The simulation results show that in the absence of thermal fluctuation the vortex motion is dominated by the configurations of the magnetic dot array. This guided vortex motion is only observed at the onset of the depinning of the interstitial vortices. Two guided vortex motion mechanisms are discussed in this work. For the AFM configuration the vortex motion is mainly originated by the existence of magnetic dots with opposite magnetized moments, while for the FM case it is mainly dependent on the degree of the condensed packing of the magnetic dot lattice constant.
Citation Information
Q H Chen, Dongqi Shi, W X Li, B Y Zhu, et al.. "Configuration-induced vortex motion in type-II superconducting films with periodic magnetic dot arrays" (2014) p. 1 - 8
Available at: http://works.bepress.com/sxdou/583/