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We prepared Bi 2 Sr 2 Ca n-1 Cu n O y (Bi-based) whiskers with length of about 8 mm at a growth temperature of 880 o C in flowing oxygen of about 80 ml/min for 240 h. From the results of X-ray diffraction patterns and ab-plane resistance-temperature characteristics, we found that the whiskers consisted of almost entirely Bi 2 Sr ...
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