High pressure synthesis and superconductivity of Sr2CuO2+δCl2-y by apical oxygen doping

被引：2

作者：

Liu, QQ ^{[1
]}

Jin, CQ ^{[1
]}

Yu, Y ^{[1
]}

Li, FY ^{[1
]}

Liu, ZX ^{[1
]}

Yu, RC ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2005年 / 19卷 / 1-3期

关键词：

high-pressure; Sr2CuO2+delta Cl2-y; superconductor; apical oxygen doping;

D O I：

10.1142/S0217979205028529

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using the apical oxygen doping mechanism, i.e. a partial substitution of divalence O for the monovalence Cl, a p-type copper oxychloride superconductor, Sr2CuO2+delta Cl2-y, was synthesized at 1050 degrees C under 6.0 GPa for 1h. The X-ray powder diffractions show that the main phase has a tetragonal structure with a=3.93 angstrom, c=15.65 angstrom. The magnetic susceptibility as well as resistance measurements indicated that the bulk superconducting transition temperature of the sample is 30K.

引用

页码：331 / 333

页数：3

共 3 条

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