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Visualization of vortex motion in FeAs-based BaFe1.9Ni0.1As2 single crystal by means of magneto-optical imaging

Journal Article


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Abstract


  • Superconductivity has been found in newly discovered iron-based compounds. This paper studies

    the motion of magnetic vortices in BaFe1.9Ni0.1As2 single crystal by means of the magneto-optical

    imaging technique. A series of magneto-optical images reflecting magnetic flux distribution at the

    crystal surface were taken when the crystal was zero-field cooled to 10 K. The behavior of the

    vortices, including penetration into and expulsion from the single crystal with increasing and

    decreasing external fields, respectively, is discussed. The motion behavior is similar to that

    observed in high-Tc superconducting cuprates with strong vortex pinning; however, the flux-front

    is irregular due to randomly distributed defects in the crystal. VC 2011 American Institute of

    Physics.

UOW Authors


  •   Lin, Zhi Wei. (external author)
  •   Li, Yong Jian (external author)
  •   Zhu, Jian Guo. (external author)
  •   Wang, Xiaolin
  •   Dou, Shi
  •   Guo, Youguang (external author)
  •   Lei, Gang (external author)
  •   Wang, Yi (external author)
  •   Phillips, Matthew (external author)
  •   Cortie, Michael (external author)
  •   Li, Yan-Cheng (external author)
  •   Choi, Ki-Young (external author)
  •   Shi, Xun (external author)

Publication Date


  • 2011

Citation


  • Lin, Z. Wei., Li, Y., Zhu, J. Guo., Wang, X., Dou, S. Xue., Guo, Y., Lei, G., Wang, Y., Philips, M., Cortie, M., Li, Y., Choi, K. & Shi, X. (2011). Visualization of vortex motion in FeAs-based BaFe1.9Ni0.1As2 single crystal by means of magneto-optical imaging. Journal of Applied Physics, 109 (7), 07E142-1-07E142-3.

Scopus Eid


  • 2-s2.0-79955386241

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2388&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1345

Start Page


  • 07E142-1

End Page


  • 07E142-3

Volume


  • 109

Issue


  • 7

Place Of Publication


  • United States

Abstract


  • Superconductivity has been found in newly discovered iron-based compounds. This paper studies

    the motion of magnetic vortices in BaFe1.9Ni0.1As2 single crystal by means of the magneto-optical

    imaging technique. A series of magneto-optical images reflecting magnetic flux distribution at the

    crystal surface were taken when the crystal was zero-field cooled to 10 K. The behavior of the

    vortices, including penetration into and expulsion from the single crystal with increasing and

    decreasing external fields, respectively, is discussed. The motion behavior is similar to that

    observed in high-Tc superconducting cuprates with strong vortex pinning; however, the flux-front

    is irregular due to randomly distributed defects in the crystal. VC 2011 American Institute of

    Physics.

UOW Authors


  •   Lin, Zhi Wei. (external author)
  •   Li, Yong Jian (external author)
  •   Zhu, Jian Guo. (external author)
  •   Wang, Xiaolin
  •   Dou, Shi
  •   Guo, Youguang (external author)
  •   Lei, Gang (external author)
  •   Wang, Yi (external author)
  •   Phillips, Matthew (external author)
  •   Cortie, Michael (external author)
  •   Li, Yan-Cheng (external author)
  •   Choi, Ki-Young (external author)
  •   Shi, Xun (external author)

Publication Date


  • 2011

Citation


  • Lin, Z. Wei., Li, Y., Zhu, J. Guo., Wang, X., Dou, S. Xue., Guo, Y., Lei, G., Wang, Y., Philips, M., Cortie, M., Li, Y., Choi, K. & Shi, X. (2011). Visualization of vortex motion in FeAs-based BaFe1.9Ni0.1As2 single crystal by means of magneto-optical imaging. Journal of Applied Physics, 109 (7), 07E142-1-07E142-3.

Scopus Eid


  • 2-s2.0-79955386241

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2388&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/1345

Start Page


  • 07E142-1

End Page


  • 07E142-3

Volume


  • 109

Issue


  • 7

Place Of Publication


  • United States