Thermopower in Bi2Sr2Ca(Cu1-xFex)(2)O-y (x=0-0.1) with various oxygen content

被引：2

作者：

Gasumyants, VE ^{[1
]}

Ye, M ^{[1
]}

Vladimirskaya, EV ^{[1
]}

Deltour, R ^{[1
]}

机构：

[1] FREE UNIV BRUSSELS,B-1050 BRUSSELS,BELGIUM

来源：

CZECHOSLOVAK JOURNAL OF PHYSICS | 1996年 / 46卷

关键词：

D O I：

10.1007/BF02583895

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Systematic study of the normal-state thermopower, S, for Bi2Sr2Ca(Cu1-xFex)(2)O-y ceramic samples has been carried out. The doping by Fe leads to a decrease of the critical temperature and an increase of the thermopower value for both investigated series (as-sintered and oxygen-reduced samples) while these effects are stronger in the second case. For a low doping level, the thermopower shows a linear temperature dependence that is typical for Bi-based HTSC. As doping level increases, the S(T) dependence becomes weaker and has a well-pronounced maximum around T=150-200 K like non-stoichiometric Y-123. The results are discussed within a band spectrum model.

引用

页码：1175 / 1176

页数：2

共 7 条

[1] THE THERMOELECTRIC-POWER OF PURE AND OXYGENATED BI2SR2CACU2O8+Y SYSTEMS - THE ROLE OF BIO LAYERS [J].