CHARACTERIZATION AND MAGNETIC-PROPERTIES OF THE NEW GREEN-COLORED R2BACOO5 OXIDES (R-EQUIVALENT-TO-DY-LU AND Y)

被引：17

作者：

HERNANDEZVELASCO, J ^{[1
]}

SALINASSANCHEZ, A ^{[1
]}

FERNANDEZ, F ^{[1
]}

SAEZPUCHE, R ^{[1
]}

机构：

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1994年 / 203卷 / 1-2期

关键词：

D O I：

10.1016/0925-8388(94)90708-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New R2BaCoO5 compounds with R=Dy, Er, Tm and Lu have been synthesized and characterized by X-ray powder diffraction. All of them are isostructural with the previously reported R2BaCoO5 where R = Ho, Yb and Y. They crystallize in the Sm2BaCuO5 structural type and belong to the Pnma space group (Z = 4). The structural differences found between Pnma-R2BaCoO5 oxides and other related compounds are given. The magnetic properties of the whole family of oxides (R = Dy-Lu and Y) have been studied from magnetic susceptibility measurements, showing the presence of three-dimensional antiferromagnetic interactions at low temperatures (T(N) < 5 K) for most of these oxides.

引用

页码：15 / 22

页数：8

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