[18p-B403-1~19] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

[18p-B403-18] In-Plane Anisotropy of Flux Pinning in BaTbO₃-doped SmBa₂Cu₃O_y Thin Films

〇Hiroki Kato¹, Yuji Tsuchiya¹, Yusuke Ichino¹, Ataru Ichinose², Yutaka Yoshida¹ (1.Nagoya Univ., 2.CRIEPI)

Keywords:superconductor

REBCO superconductors with large amount of BMO indicate the low T_c but BaTbO₃ (BTbO)-doped REBCO films indicate high-T_c over 90 K when the content were 0-20vol%. It is also reported that BTbO formed c-axis correlation pinning centers when the BTbO content increases. However, the shape of BTbO at an addition amount of ~10vol% has not been clarified. In this study, we focused on the in-plane shape of BTbO and investigated the in-plane anisotropy of flux pinning in BTbO-doped SmBCO films.