[17a-Z21-1~6] 11.2 Thin and thick superconducting films, coated conductors and film crystal growth

[17a-Z21-3] Control of stacking faults and enhancement of J_c for fluorine-free MOD processed RE123

〇Rio Kanaizumi¹, Takanori Motoki¹, Takeshi Koshio¹, Yuta Segawa¹, Miyako Kozawa¹, Shin-ichi Nakamura², Genki Honda³, Tatsuoki Nagaishi³, Jun-ichi Shimoyama¹ (1.Aoyama-Gakuin Univ., 2.TEP, 3.Sumitomo Electric Industries)

Keywords:superconductivity

Our previous study revealed that post annealing under humid atmosphere leads to the generation of stacking faults in RE123 thin films by FF-MOD method and improvement of J_c properties under low magnetic fields. In our recent study, low temperature post annealing below 200°C were systematically investigated in Y123 thin films. It was found that prolonged annealing introduced stacking faults even at low temperatures.