ON THE LOW-TEMPERATURE MAGNETIC-PROPERTIES OF CUO SINGLE-CRYSTALS

被引：30

作者：

AZZONI, CB

PALEARI, A

PARRAVICINI, GB

机构：

[1] Dipartimento di Fiscia 'A Volta', Pavia Univ.

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 05期

关键词：

D O I：

10.1088/0953-8984/4/5/015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The origin and magnitude of a paramagnetic contribution to the CuO susceptibility at T < 150 K are studied by analysing electron paramagnetic resonance and static magnetic susceptibility measurements carried out on a set of CuO single crystals. This has allowed us to confirm a previous supposition about the behaviour of the susceptibility for T < 150 K. The asymptotic finite value of the susceptibility in the antiferromagnetic phase is also discussed by means of a crystal-field calculation which seems to rule out contributions to the local magnetic moments from incompletely quenched orbital angular moments of the Cu2+ ions. Preliminary magnetization measurements suggest the presence of weak ferromagnetism, which may explain the unusual behaviour of the CuO susceptibility.

引用

页码：1359 / 1366

页数：8

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