[10a-A31-1~7] 11.2 Wires, Bulks, Fabrication process, Power applications

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[10a-A31-1] Fabrication of A₃C₆₀ superconducting bulks (A = alkali metal) and their critical current density

〇Hiroki Hasegawa^1,2, Akira Iyo², Hiraku Ogino², Hiroshi Eisaki², Shigeyuki Ishida², Kenji Kawashima^3,2, Taichiro Nishio^1,2, Mariko Murayama¹ (1.Tokyo Univ. of Science, 2.AIST, 3.IMRA JAPAN)

Keywords:

superconducting bulk,critical current density,synthesis conditions

The alkali metal (A) doped fullerene superconductor A₃C₆₀ is an interesting material with a high superconducting transition temperature T_c (≈ 33 K) and upper critical field H_c2(0) (≈ 90 T). We're exploring the potential applications of A₃C₆₀ bulk materials that we made using a newly developed synthesis method. This time, we report on our research findings regarding improving Jc through further optimization of the bulk production process and heat treatment conditions, as well as suppressing J^_c degradation by sealing the bulk in metal containers.