Superconductivity at 14K in the Co-doped SmFe0.9Co0.1AsO

Details Superconductivity at 14K in the Co-doped SmFe0.9Co0.1AsO Superconductivity at 14K in the Co-doped SmFe0.9Co0.1AsO

2009-02-23

arxiv.org/abs/0902.3894v2

J. Sup. & Novel Magnetisim 22, L623-L626 (2009)

Physics

Condensed Matter

Superconductivity

13 pages of text + Figs

Scientific paper

We report superconductivity in the SmFe0.9Co0.1AsO system being prepared by most easy and versatile single step solid-state reaction route. The parent compound SmFeAsO is non-superconducting but shows the spin density wave (SDW) like antiferromagnetic ordering at around 140K. To destroy the antiferromagnetic ordering and to induce the superconductivity in the parent system, the Fe2+ is substituted partially by Co3+. Superconductivity appears in SmFe0.9Co0.1AsO system at around 14K. The Co doping suppresses the SDW anomaly in the parent compound and induces the superconductivity. Magnetization measurements show clearly the onset of superconductivity with Tcdia at 14K. The isothermal magnetization measurements exhibit the lower critical fields (Hc1) to be around 200Oe at 2 K. The bulk superconductivity of the studied SmFe0.9Co0.1AsO sample is further established by open diamagnetic M(H) loops at 2, and 5K. Normal state (above Tc) linear isothermal magnetization M(H) plots excluded presence of any ordered magnetic impurity in the studied compound.

Affiliated with

Also associated with

No associations

Rating

Superconductivity at 14K in the Co-doped SmFe0.9Co0.1AsO does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Superconductivity at 14K in the Co-doped SmFe0.9Co0.1AsO, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconductivity at 14K in the Co-doped SmFe0.9Co0.1AsO will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-584604