Skip to main content

Percolative nature of current transport in polycrystalline MgB2 wires

Journal Article


Abstract


  • The percolation model, taking into account the percolative nature of current transport due to anisotropy, is a powerful tool for predicting the field and temperature dependences of critical current in MgB2 superconducting wires. The critical current behaviour measured from MgB 2 wires can be obviously explained by only four fitting parameters, the anisotropy parameter, the pinning force maximum, the upper critical field along the ab-plane, and the percolation threshold. Moreover, the temperature dependence of the upper critical field is further explained by the dirty-limit two-gap theory.

Authors


  •   Shahabuddin, Mohammed (external author)
  •   Alzayed, Nasser Saleh (external author)
  •   Oh, Sangjun (external author)
  •   Choi, Seyong (external author)
  •   Maeda, Minoru (external author)
  •   Shah, Muhammad (external author)
  •   Motaman, Ashkan (external author)
  •   Hossain, Md Shahriar
  •   Kim, Jung Ho

Publication Date


  • 2014

Citation


  • Shahabuddin, M., Alzayed, N., Oh, S., Choi, S., Maeda, M., Shah, M. Shahabuddin., Motaman, A., Al Hossain, M. & Kim, J. (2014). Percolative nature of current transport in polycrystalline MgB2 wires. Solid State Communications, 181 20-23.

Scopus Eid


  • 2-s2.0-84890505954

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/974

Number Of Pages


  • 3

Start Page


  • 20

End Page


  • 23

Volume


  • 181

Abstract


  • The percolation model, taking into account the percolative nature of current transport due to anisotropy, is a powerful tool for predicting the field and temperature dependences of critical current in MgB2 superconducting wires. The critical current behaviour measured from MgB 2 wires can be obviously explained by only four fitting parameters, the anisotropy parameter, the pinning force maximum, the upper critical field along the ab-plane, and the percolation threshold. Moreover, the temperature dependence of the upper critical field is further explained by the dirty-limit two-gap theory.

Authors


  •   Shahabuddin, Mohammed (external author)
  •   Alzayed, Nasser Saleh (external author)
  •   Oh, Sangjun (external author)
  •   Choi, Seyong (external author)
  •   Maeda, Minoru (external author)
  •   Shah, Muhammad (external author)
  •   Motaman, Ashkan (external author)
  •   Hossain, Md Shahriar
  •   Kim, Jung Ho

Publication Date


  • 2014

Citation


  • Shahabuddin, M., Alzayed, N., Oh, S., Choi, S., Maeda, M., Shah, M. Shahabuddin., Motaman, A., Al Hossain, M. & Kim, J. (2014). Percolative nature of current transport in polycrystalline MgB2 wires. Solid State Communications, 181 20-23.

Scopus Eid


  • 2-s2.0-84890505954

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/974

Number Of Pages


  • 3

Start Page


  • 20

End Page


  • 23

Volume


  • 181