[10p-S224-1~17] 11.3 Critical Current, Superconducting Power Applications

[10p-S224-16] Critical Current properties of NdFeAs(O,F) thin films grown on vicinal substrates

〇Kazumasa Iida^1,2, Takuya Matsumoto¹, Keisuke Kondo¹, Takafumi Hatano¹, Hiroshi Ikuta¹ (1.Nagoya Univ., 2.JST CREST)

Keywords:Fe-based superconductor, vicinal substrate, critical current characteristic

LnFeAsO (Ln: lanthanoid), one of the Fe-based superconductors (FBS), shows a superconducting transition temperature T_c of 58 K, which is the second highest next to the cuprates. Hence FBS generated a huge impact on the community of fundamental and applied superonducting research. Albeit LnFeAsO has the highest T_c amog the FBS, the critical current properties reported to date are inferior to BaFe₂ As₂ (Ba-122) system. Here, we report on a record J_c of 11 MA/cm² for NdFeAs(O,F) thin films grown on vicinal substrates ever reported in FBS thin films.