[20a-P03-1~21] 11 Superconductivity (Poster)

[20a-P03-17] Synthesis c-axis textured CaKFe₄As₄ bulk using SPT technique

〇Kenji Kawashima^1,2, Yoshihisa Kamiya^1,2, Shigeyuki Ishida², Yoshinori Tsuchiya², Pavan Kumar Naik Sugali², Yasunori Mawatari², Akira Iyo², Yoshiyuki Yoshida², Hiroshi Eisaki², Hiraku Ogino² (1.IMRA JAPAN Co., Ltd., 2.AIST)

Keywords:

Superconductor,Iron based supercoductor,superconducting bulk

Single-crystal samples of CaKFe₄As₄ exhibits high critical current density properties. Therefore, CaKFe₄As₄ is a promising candidate for polycrystalline superconducting bulk. In previous studies, we revealed that CaKFe₄As₄ bulk fabricated by spark plasma sintering achieved high Jc values. Tot further improve the J_c charactor, we focused on the c-axis aligned grain method. In this study, we fabricated CaKFe₄As₄ superconducting bulk using the spark plasma texturing (SPT) method and investigated the effectiveness about grain alignment.