[16p-D209-1~14] 11.1 Fundamental properties

[16p-D209-3] Development of superconducting joints between different cuprate superconductors

〇Taiki Inoue¹, Takanori Motoki¹, Jun-ichi Shimoyama¹ (1.Aoyama Gakuin Univ.)

Keywords:superconductor, La214

When Bi2223 and RE123 superconducting tapes are joined by direct heat treatment, non-superconductors such as BaBiO₃ form at the interface and superconducting current doesn’t flow at all. In this study, we have focused on the possibility of developing a superconducting joint using La_2-xSr_xCuO₄ (La214: T_c~38 K) as an intermediate layer between RE123 and Bi2223 tapes. Firstly, we prepare a superconducting joint using sintered materials. In the presentation, we will focus on the superconducting properties evaluated by resistivity measurements using a low-temperature physical property measurement system (PPMS).