Synthesis of CaKFe${}_4$As${}_4$ bulk samples with high critical current density using a spark plasma sintering technique

Shigeyuki Ishida, S. Pavan Kumar Naik, Yoshinori Tsuchiya +7

A high density CaKFe${}_4$As${}_4$ bulk sample was successfully synthesized using a spark plasma sintering (SPS) technique. The density of the synthesized sample was 5.02 g cm${}^{-3}$,…