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Superconducting properties of Pb2Sr2Y1−xCaxCu3O8+δ

✍ Scribed by Yoji Koike; Masahiro Masuzawa; Hiromu Sunagawa; Takashi Noji; Hisashi Kawabe; Norio Kobayashi; Yoshitami Saito

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
381 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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The dependence on the oxygen concentration of normal and superconducting properties of ceramic samples of Pb2Sr2Y~ \_xCaxCu3Os+a has been investigated in the composition range of 0 \_< x< 0.5 and 0\_< fi< 2. The superconductivity in each sample with different x is suppressed with increasing ~, which

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Polycrystalline Pb2Sr2Yl\_xCaxCu3Os+ 8 (PSYCCO) samples have been prepared without precursor (x=0.3-0.6). The samples exhibit a metallic normal-state conductivity, and the highest To(R=0 ) achieved is 70K. Regarding anisotropy, SQUID-magnetometry demonstrates the intermediate position of PSYCCO betw