[13a-B406-1~10] 11.1 Fundamental properties

[13a-B406-7] Control of chemical composition and superconducting properties of Er247

〇Mayuko Bando¹, Yukihiro Okamura¹, Takanori Motoki¹, Jun-ichi Shimoyama¹ (1.Aoyama Gakuin Univ.)

Keywords:superconductivity

In this study, relationship between synthesis conditions and synthesis of Ca- and/or Sr-doped Er247 was investigated. For Er247 samples with almost single phase were successfully synthesized by sintering only for 3 h. Undoped Er247 samples showed improved T_c as decrease in sintering time, while T_c decreased by doping of Ca. (Ca,Sr) co-doping samples showed unchanged T_c.