NEW FAMILY OF SUPERCONDUCTING COPPER OXIDES - GASR2LN1-XCAXCU2O7

被引：44

作者：

DABROWSKI, B

RADAELLI, P

HINKS, DG

MITCHELL, AW

VAUGHEY, JT

GROENKE, DA

POEPPELMEIER, KR

机构：

[1] ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439

[2] NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208

来源：

PHYSICA C | 1992年 / 193卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90869-E

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have prepared a new copper oxide, GaSr2Y1-xCaxCu2O7 (0 less-than-or-equal-to x less-than-or-equal-to 0.4), that becomes superconducting after high-pressure oxygen annealing. While the undoped parent compound, x = 0, does not show three-dimensional magnetic order above 4 K, probably due to the presence of the thick ionic region separating the CuO2 layers, superconductivity with a high-T(c) (approximately 70 K) is possible for the doped compositions.

引用

页码：63 / 67

页数：5

共 8 条

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