PRESSURE-DEPENDENCE OF THE SUPERCONDUCTING TRANSITION-TEMPERATURE OF BI-BASED AND TL-BASED HIGH-TC SUPERCONDUCTORS

被引：33

作者：

KUBIAK, R

WESTERHOLT, K

PELKA, G

BACH, H

KHAN, Y

机构：

[1] RUHR UNIV BOCHUM,INST EXPTL PHYS 4,W-4630 BOCHUM,GERMANY

[2] RUHR UNIV BOCHUM,INST WERKSTOFFE ELEKTROTECH,W-4630 BOCHUM,GERMANY

来源：

PHYSICA C | 1990年 / 166卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(90)90054-I

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report low field magnetization measurements of a single crystal Bi2Sr2Ca1Cu2O8 and polycrystalline samples of the Bi2Sr2Ca2Cu3O10 and the Tl2Ba2Ca2Cu3O10-phase under applied hydrostatic pressure up to 10 kbar. The pressure shift of Tc for all compounds is positive with an initial slope dTc/dp= +0.19 K/kbar for the Bi(2212) and the dTc/dp= +0.16 K/kbar for the Bi(2223)-phase. For the Tl(2223)-phase we find a very strong shift of Tc with pressure with a slope of dTc/dp= +0.50 K/kbar. A comparison of the pressure shift of Tc for the different Y-, Bi- and Tl-based high-Tc superconductors indicates that the shift is not determined by parameters of the CuO-layers alone but depends on details of the crystal structure. We discuss several mechanisms which are important for determining the absolute value of dTc/dp. © 1990.

引用

页码：523 / 529

页数：7

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