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20 K

0Jc/Jc(0.01T)

10−1100.5 µm
1.0 µm5 µm−210−110B (T)

0104
3

20 K

Bi (T)

21
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2

−710¢−610d (m)−510