MOSSBAUER STUDIES ON SUPERCONDUCTING LA1.82CA1.18(CU0.99FE0.01)2O6

被引：3

作者：

FURUBAYASHI, T ^{[1
]}

KINOSHITA, K ^{[1
]}

YAMADA, T ^{[1
]}

MATSUMOTO, T ^{[1
]}

机构：

[1] NIPPON TELEGRAPH & TEL PUBL CORP, MUSASHINO ELECT COMMUN LAB, BASIC RES LABS, MUSASHINO, TOKYO 180, JAPAN

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91839-V

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Mossbauer spectroscopy was used to study the superconducting oxide La1.82Ca1.18(Cu0.99 Fe-57(0.01))2O6 prepared under oxygen pressures of 2 atm (non-superconducting), 50 atm (T(c) = 9 K) and 400 atm (T(c) = 43 K). The spectra recorded at room temperature were paramagnetic. Iron atoms occupy mainly regular copper sites with pyramidal oxygen coordination. The measurements at 4.2 K showed that the samples prepared in 2 and 50 atm are magnetically ordered and suggested that the magnetization direction is parallel to the a, b-plane. In contrast, the magnetic ordering was largely suppressed at 4.2 K in the superconducting sample prepared in 400 atm oxygen.

引用

页码：1231 / 1232

页数：2

共 4 条

[1] SUPERCONDUCTIVITY AT 60-K IN LA2-XSRXCACU2O6 - THE SIMPLEST DOUBLE-LAYER CUPRATE [J].