Thermoelectric power of deoxygenated Bi1.6Pb0.4Sr2Ca2Cu3O10+δ sintered superconducting pellets

被引：1

作者：

Dey, TK ^{[1
]}

机构：

[1] Indian Inst Technol, Cryogen Engn Ctr, Kharagpur 721302, W Bengal, India

来源：

JOURNAL OF SUPERCONDUCTIVITY | 1998年 / 11卷 / 03期

关键词：

thermoelectric power; electrical resistivity; high-Tc superconductors; deoxygenation;

D O I：

10.1023/A:1022602931513

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The thermal variation of the electrical resistivity and thermoelectric power of Bi1.6Pb0.4Sr2Ca2Cu3O10 + delta pellets subjected to various degrees of deoxygenation is reported. The temperature dependence of the electrical resistivities of deoxygenated samples displays gradual transformation from metallic-like to semiconductor-like features in the normal state. All the samples however, show superconducting transition, but increasing deoxygenation depresses T-c0 from 102 to 45 K. Gross features of the temperature variation of thermoelectric power observed in properly oxygenated (Bi, Pb)-2223 cuprates are retained in all the deoxygenated samples. Our results on electrical resistivity and thermoelectric power in the normal state have been found to be consistent with a two-band model.

引用

页码：367 / 372

页数：6

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