SYNTHESIS AND SUPERCONDUCTING PROPERTIES OF THE INFINITE-LAYER COMPOUNDS SR1-XLNXCUO2(LN=LA,ND,SM,GD)

被引：72

作者：

IKEDA, N ^{[1
]}

HIROI, Z ^{[1
]}

AZUMA, M ^{[1
]}

TAKANO, M ^{[1
]}

BANDO, Y ^{[1
]}

TAKEDA, Y ^{[1
]}

机构：

[1] MIE UNIV, FAC ENGN, DEPT CHEM, TSU, MIE 514, JAPAN

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1993年 / 210卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)90979-Z

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Infinite-layer-type superconductors Sr1-xLnxCuO2 are synthesized under high pressure of 3 GPa for Ln=Sm, Gd as well as for Ln = La, Nd. Their chemical and superconducting properties are systematically studied as functions of doping concentration and the kind of lanthanide ion. As a result, it is demonstrated that the variation of these properties with doping concentration is similar for all the examined Ln3+ ions. The solubility limit lies at x approximately 0.10. CuO2 sheets are expanded with increasing x, while their spacing decreases. The T(c) onset determined by magnetic measurements remains constant for any doping concentration; only the Meissner fraction increases with increasing x.

引用

页码：367 / 372

页数：6

共 10 条

[1]

Almasan C., 1991, CHEM HIGH TEMPERATUR

[2] SUPERCONDUCTIVITY AT 110-K IN THE INFINITE-LAYER COMPOUND (SR1-XCAX)1-YCUO2 [J].