NEW FAMILY OF SUPERCONDUCTING COPPER OXIDES - BI CUPRATES OF TYPE-1212

被引：58

作者：

EHMANN, A ^{[1
]}

KEMMLERSACK, S ^{[1
]}

LOSCH, S ^{[1
]}

SCHLICHENMAIER, M ^{[1
]}

WISCHERT, W ^{[1
]}

ZOLLER, P ^{[1
]}

NISSEL, T ^{[1
]}

HUEBENER, RP ^{[1
]}

机构：

[1] UNIV TUBINGEN,INST PHYS,LEHRSTUHL EXPTL PHYS 2,W-7400 TUBINGEN 1,GERMANY

来源：

PHYSICA C | 1992年 / 198卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90257-D

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bi cuprates of type 1212 have been synthesized above 970-degrees-C from the proper starting materials. The oxides of idealized composition (Bi0.5Cu0.5)Sr2yCu2O7-z crystallize in the tetragonal space group P4/mmm (a=3.815(5), c=11.73(1) angstrom) and show solid solution behaviour. The as-prepared materials are non-superconducting above 5 K. However, post-treatment in flowing oxygen at moderate temperature (almost-equal-to 500-degrees-C) introduces superconductivity. The highest superconducting transition temperature is situated at 68 K for a sample of nominal composition (Bi0.5Cu0.5)-Sr2Y0.8Cu2.2O6.95.

引用

页码：1 / 6

页数：6

共 9 条

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