[19a-PB2-1~36] 11 Superconductivity (Poster)

[19a-PB2-21] Liquid phase stabilization by adding Ag to SmBa₂Cu₃O_y coated conductors
fabricated by Vapor-Liquid-Solid growth technique.

〇Kento Yasuda¹, Tomohiro Ito¹, Yuji Tsuchiya¹, Yusuke Ichino¹, Yutaka Yoshida¹ (1.Nagoya Univ.)

Keywords:Thin Film

In order to apply the REBa₂Cu₃O_y(RE123, RE = Rare Earth) film to the superconducting wire, it is necessary to increase the production speed. Therefore, high-speed film formation using the VLS growth method attracts attention. Although the oxygen partial pressure was raised in the VLS growth method in order to perform further high-speed film formation, the liquid phase partially solidified due to the rise in the melting point of the liquid phase. Therefore, the problem was solved by adding Ag, which may decrease the liquidus melting point, to the liquid phase. In this study, we investigated the effectiveness of Ag addition by varying oxygen partial pressure and substrate temperature.