[14a-PA3-1~29] 11 Superconductivity（Poster）

[14a-PA3-10] Influence of heat treatments on crystallization process of LaBa₂Cu₃O_7-δ films prepared by fluorine-free MOD method

〇Tomohiro Miyajima¹, Ryo Teranishi¹, Kazuhiro Yamada¹, Kenji Kaneko¹ (1.Kyushu Univ.)

Keywords:Superconductor,REBCO,MOD method

Though LaBCO has the highest T_C of 98 K among REBCO superconductors in bulk, it is difficult to prepare thin film with high T_C. In this study, LaBCO films were fablicated by a FF-MOD method. Samles were crystallized at five different temperatures (973, 1023, 1073, 1123, 1223 K) and characterized by XRD to consider the influence of temperature on crystallization process of LaBCO films. C-axis oriented LaBCO films were fabricated from 973 K to 1123 K, and LaBCO decomposed over 1223 K. High volume fraction of LaBCO was obtained especially from 973 K to 1023 K.