The Effect of Cu2S Addition on the Superconductivity of Bi-Pb-Sr-Ca-Cu-O System

被引：0

作者：

Chen Xuean ^{[1
]}

Chen Dejun ^{[1
]}

Xu Cuiying ^{[1
]}

Zhang Jinbiao ^{[1
]}

Zhu Daoben ^{[1
]}

Yang Deliang ^{[1
]}

机构：

[1] Acad Sinica, Inst Chem, Beijing 100080, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 1994年 / 10卷 / 08期

关键词：

Superconductivity; Cu2S doped Bi-Pb-Sr-Ca-Cu-O system; R-T; XRD; XPS;

D O I：

10.3866/PKU.WHXB19940807

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Superconductivity of Cu2S doped Bi-Pb-Sr-Ca-Cu-O system has been investigated by resistance. X-ray diffraction and XPS measurements. It was found that an appropriate amount of Cu2S can lower the optimum sintering temperature and enhance the formation of the high-T-c phase. The analyses of XPS spectra reveal that the addition of Cu2S causes the negative chemical shifts of the Cu 2P(3/2) main peaks and their satellite areas, suggesting that the hole contents decrease with increasing Cu2S concentration.

引用

页码：704 / 709

页数：6

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