[14a-P05-1~26] 11 Superconductivity (Poster)

[14a-P05-17] Improvement of superconductivity in Nd123 films by oxygen-controlled KOH flux method

〇(M1)Haruki Shigenobu¹, Shuhei Funaki¹, Yasuji Yamada¹ (1.Shimane Univ.)

Keywords:

superconductor,REBCO,thin film

The KOH flux method, in which the raw material is dissolved in molten KOH and crystals are grown, can produce NdBa₂Cu₃O_y (Nd123) films at low temperatures of 500 ~ 700ºC. However, when Nd123 films are grown in air using this method, the T_c is significantly reduced due to Nd/Ba substitution, and it has been reported that Nd/Ba substitution can be suppressed by reducing the oxygen partial pressure during Nd123 synthesis. characteristics by reducing the oxygen content of the raw material to suppress Nd/Ba substitution.