New candidates for superconductors;: A series of layered oxysulfides (Cu2S2)(Srn+1MnO3n-1).

被引：70

作者：

Otzschi, K ^{[1
]}

Ogino, H ^{[1
]}

Shimoyama, J ^{[1
]}

Kishio, K ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1999年 / 117卷 / 3-4期

关键词：

D O I：

10.1023/A:1022545228168

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have discovered three new layered transition-metal oxysulfides; (Cu2S2)(Sr2CuO2), (Cu2S2)(Sr2NiO2) and (Cu2S2)(Sr3Sc2O5), whose compositions are generally formulated as (Cu2S2)(Srn+1MnO3n-1). Their structures consist of alternate stockings of perovskite-based MO2 plane(s) and Cu2S2 layers, showing great similarity to cuprate superconductors when the Cu2S2 layer is considered as the blocking layer. The formation of these phases is limited by the ion size of M and elasticity of the Cu2S2 layer The newly found (Cu2S2)(Sr2CuO2) posseses the horizontally extended tetragonal CuO2 plane, making itself a possible candidate for a new superconductor.

引用

页码：729 / 733

页数：5

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