[17p-P03-1~18] 11 Superconductivity (Poster)

[17p-P03-12] Study on Synthesis of Bi-based Oxide High-T_c Superconductors Bi_1.75Pb_0.35Sr_1.9Ca_xCu_x+1O_y(x≥2)

〇Shunsuke Omori¹, Marina Mendoza¹, Yumeng Zheng^2,1, Kenji Sakai¹, Yuki Satou¹, Sinzo Yoshikado¹, Ryo Matsumoto³, Yoshihiko Takano³ (1.Doshisha Univ., 2.Tokyo University of Science, 3.NIMS)

Keywords:

superconductor,Bi2223

Bi-2223 exhibits a high superconducting transition temperature of 110 K and is expected to be used for electromagnets and power transmission wires because superconductivity can be achieved by liquid nitrogen cooling. However, Pb is used in its synthesis, which is environmentally hazardous. In this study, we attempted to reduce the amount of Pb by changing the composition of Ca and Cu while keeping the composition of Bi, Pb, and Sr constant.