ANTIFERROMAGNETIC ORDERING IN (SR, BA)2CUO2(CO3)

被引：5

作者：

LAPPAS, A ^{[1
]}

ARMSTRONG, AR ^{[1
]}

PRASSIDES, K ^{[1
]}

EDWARDS, PP ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CHEM LAB,CAMBRIDGE CB2 1EW,ENGLAND

来源：

PHYSICA B | 1992年 / 180卷

关键词：

D O I：

10.1016/0921-4526(92)90775-N

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Cu2+ sublattice magnetisation of the layer oxycarbonates Sr2-xBaxCuO2(CO3) (0 less-than-or-equal-to x less-than-or-equal-to 1.5) is studied by powder neutron diffraction. The solid solutions with 0 less-than-or-equal-to x less-than-or-equal-to 1.35 order antiferromagnetically with magnetic unit cell dimensions of 2a x 2a x 2c, T(N) almost-equal-to 250 K and mu(Cu) less-than-or-equal-to 0.50-mu(B) at 5 K. No long range order is observed for the x = 1.5 sample.

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页码：411 / 413

页数：3

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