Journal of Superconductivity and Novel Magnetism

, Volume 27, Issue 2, pp 349–352 | Cite as

Evidence for Skyrmions in the High-Temperature Superconductors

  • Alfredo A. Vargas-Paredes
  • Marco Cariglia
  • Mauro M. DoriaEmail author
  • Edinardo I. B. Rodrigues
  • A. R. de C. Romaguera
Original Paper


We claim that the charge density wave recently found by resonant soft X-ray scattering in layered copper oxides is the tetragonal symmetry defined by the distance between neighboring Cu3+ ions in the CuO2 layer that determines the critical temperature. We find evidence that this tetragonal symmetry is a skyrmionic state, which is responsible for an unusual magnetic order and charge flow in the layers that leads to the breaking of the time reversal symmetry below the pseudogap line. The core of the skyrmions form pockets of local magnetic field piercing the superconducting layers in opposite direction to the rest of the unit cell.


Superconductivity Skyrmion Tetragonal symmetry 



Marco Cariglia was supported by Fapemig under project CEX APQ 2324-11. E.I.B. Rodrigues, A.R. de C. Romaguera, A.A. Vargas-Paredes and M.M. Doria acknowledge the Brazilian agencies CAPES, CNPq, FACEPE and FAPERJ for partial financial support.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Alfredo A. Vargas-Paredes
    • 3
  • Marco Cariglia
    • 1
  • Mauro M. Doria
    • 3
    Email author
  • Edinardo I. B. Rodrigues
    • 2
  • A. R. de C. Romaguera
    • 2
  1. 1.Departamento de FísicaUniversidade Federal de Ouro PretoOuro PretoBrazil
  2. 2.Departamento de FísicaUniversidade Federal Rural de PernambucoRecifeBrazil
  3. 3.Departamento de Física dos SólidosUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil

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