Phase identification and superconductivity transitions in Sr-doped Pr1.85Ce0.15CuO4+delta

被引：2

作者：

Varela, A

ValletRegi, M

GonzalezCalbet, JM

机构：

[1] UNIV COMPLUTENSE MADRID,FAC QUIM,DEPT QUIM INORGAN,E-28040 MADRID,SPAIN

[2] UCM,RENFE,INST MAGNETISMO APLICADO,MADRID 28230,SPAIN

[3] UNIV COMPLUTENSE MADRID,FAC FARM,DEPT QUIM INORGAN & BIOORGAN,E-28040 MADRID,SPAIN

来源：

JOURNAL OF MATERIALS RESEARCH | 1997年 / 12卷 / 10期

关键词：

D O I：

10.1557/JMR.1997.0335

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sr-doped Pr1.85Ce0.15CuO4+delta samples have been prepared with accurate control of the oxygen content. The stability of both T' and T* phases is strongly dependent on Sr and oxygen content. An electron diffraction study indicates that, in some cases, anionic vacancies are ordered leading to a pseudo-tetragonal superlattice with unit cell parameters 2 root 2a(t) x c(t). Structural transitions and superconducting phases created by hole doping in such a system are also reported.

引用

页码：2526 / 2532

页数：7

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