[8a-Z27-1~9] 11.3 Critical Current, Superconducting Power Applications

[8a-Z27-3] Field and Temperature dependences of Asymmetric Critical Current Properties in BaHfO₃-doped SmBa₂Cu₃O_yFilms under In-plane Magnetic Fields

〇Yuji Tsuchiya¹, Yusuke Ichino², Yutaka Yoshida¹ (1.Nagoya Univ., 2.Aichi Inst. of Technol.)

Keywords:High temperature superconductor, Diode, Nonreciprocal

Superconducting diodes with an asymmetric critical current density J_c have been proposed. In this study, field and temperature dependences of the asymmetric J_c were investigated to clarify the effect of bulk pinning in the BaHfO₃-doped SmBa₂Cu₃O_y films. As results, the asymmetricity was suppressed below 60 K possibly due to the enhanced bulk pinning by intrinsic pinning centers.