OXYGEN-DEFICIENT BARIUM LEAD-OXIDE PEROVSKITES

被引：26

作者：

CAVA, RJ

TAKAGI, H

KRAJEWSKI, JJ

PECK, WF

HWANG, HY

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.47.11525

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Through careful selection of reduction conditions it is found that both BaPbO3 and Ba4Pb3O10 can be prepared with significant amounts of oxygen deficiency. In both cases, crystallographic unit cells and resistivities change with oxygen content. Hall-effect measurements, however, indicate that the oxygen nonstoichiometry does not change the mobile-carrier concentration, suggesting that the electrons introduced are strongly trapped. The oxygen-deficient materials BaPbO2.90 and Ba4Pb3O9.86 are not superconducting down to 70 mK.

引用

页码：11525 / 11528

页数：4

共 11 条

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