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Simulation of the phase diagram of magnetic vortices in two-dimensional superconductors: evidence for vortex chain formation

Journal Article


Abstract


  • We study the superconducting vortex states induced by the interplay of long-range Pearl repulsion and short-range intervortex attraction using Langevin dynamics simulations. We show that at low temperatures the vortices form an ordered Abrikosov lattice both in low and high fields. The vortices show distinctive modulated structures at intermediate fields depending on the effective intervortex attraction: ordered vortex chain and kagome-like vortex structures for weak attraction; bubble, stripe and antibubble lattices for strong attraction. Moreover, in the regime of the chain state, the vortices display structural transitions from chain to labyrinthine (or disordered chain) and/or to disordered states depending on the strength of the disorder.

Authors


  •   Xu, Xibin (external author)
  •   Fangohr, H (external author)
  •   Gu, M (external author)
  •   Chen, W (external author)
  •   Wang, Zhihe (external author)
  •   Zhou, F (external author)
  •   Shi, Dongqi
  •   Dou, Shi Xue

Publication Date


  • 2014

Citation


  • Xu, X. B., Fangohr, H., Gu, M., Chen, W., Wang, Z. H., Zhou, F., Shi, D. Q. & Dou, S. X. (2014). Simulation of the phase diagram of magnetic vortices in two-dimensional superconductors: evidence for vortex chain formation. Journal of Physics: Condensed Matter, 26 (11), 1-6.

Scopus Eid


  • 2-s2.0-84897731682

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1029

Number Of Pages


  • 5

Start Page


  • 1

End Page


  • 6

Volume


  • 26

Issue


  • 11

Abstract


  • We study the superconducting vortex states induced by the interplay of long-range Pearl repulsion and short-range intervortex attraction using Langevin dynamics simulations. We show that at low temperatures the vortices form an ordered Abrikosov lattice both in low and high fields. The vortices show distinctive modulated structures at intermediate fields depending on the effective intervortex attraction: ordered vortex chain and kagome-like vortex structures for weak attraction; bubble, stripe and antibubble lattices for strong attraction. Moreover, in the regime of the chain state, the vortices display structural transitions from chain to labyrinthine (or disordered chain) and/or to disordered states depending on the strength of the disorder.

Authors


  •   Xu, Xibin (external author)
  •   Fangohr, H (external author)
  •   Gu, M (external author)
  •   Chen, W (external author)
  •   Wang, Zhihe (external author)
  •   Zhou, F (external author)
  •   Shi, Dongqi
  •   Dou, Shi Xue

Publication Date


  • 2014

Citation


  • Xu, X. B., Fangohr, H., Gu, M., Chen, W., Wang, Z. H., Zhou, F., Shi, D. Q. & Dou, S. X. (2014). Simulation of the phase diagram of magnetic vortices in two-dimensional superconductors: evidence for vortex chain formation. Journal of Physics: Condensed Matter, 26 (11), 1-6.

Scopus Eid


  • 2-s2.0-84897731682

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1029

Number Of Pages


  • 5

Start Page


  • 1

End Page


  • 6

Volume


  • 26

Issue


  • 11