Details

Autor(en) / Beteiligte

• Raama Varma, Manoj
• Varghese, Neson
• Jayakumari Babu, Anooja
• Pillai Mohan, Aswathy
• Upendran, Syamaprasad

Titel

Structural and Superconducting Properties of BaF2 Doped SmFeAsO

Ist Teil von

• Materials science forum, 2015-09, Vol.830-831, p.595-599

Ort / Verlag

Pfaffikon: Trans Tech Publications Ltd

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We have studied the impact of simultaneous Ba2+ doping at Sm3+ site (hole doping) and F- doping at O2- site (electron doping) on the structural and superconducting properties of Sm1111 system using a single source, BaF2. With BaF2 doping the extent of layering of the grains and the grain size have been improved considerably. High transport current of 875 A/cm2 at 12 K has been achieved for the doped sample. The binary doped sample shows higher TC of 51 K than the corresponding F-alone doped sample. In addition, substantially high values of HC2 and better JC-H behavior are observed for the BaF2 doped samples. These results strongly indicate the scope for SmFeAsO based conductors with higher current carrying capacity.