Electrical, magnetic and superconducting properties in Bi2-xPbxSr2CaCu2O8+δ

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[1] Koyama, Kuniyuki
[2] Kanno, Satoshi
[3] Noguchi, Seiichiro
来源：
Koyama, Kuniyuki | 1600年 / 29期
关键词：
Bismuth Compounds--Electric Conductivity - Ceramic Materials - X-rays--Diffraction;
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摘要：
Samples of the Bi2-xPbxSr2CaCu2O8+δ system are prepared to be almost a single phase of the Bi2Sr2CaCu2O8+δ structure for a region of 0 &le x &le 0.15 Substitution of Pb for Bi ions is observed by EPMA at grain level. The Tc decreases linearly with x in this region. Comparison with the results for the Bi2Sr2Ca1-xNdxCu2O8+δ shows that the hole concentration in [Cu-O] plays a most significant role in determining the Tc in the Bi2Sr2CaCu2O8+δ system. The universal relationship between the hole concentration in [Cu-O] and Tc is determined in a wide range of concentration in this system.
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