Anomalies in the cathodoluminescence of the antiferromagnetic oxides NiO and CoO

被引：8

作者：

DiazGuerra, C

Piqueras, J

机构：

[1] Depto. de Fis. de Materiales, Facultad de Físicas, Universidad Complutense

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 12期

关键词：

magnetically ordered materials; insulators; optical properties; luminescence;

D O I：

10.1016/S0038-1098(97)10010-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cathodoluminescence (CL) of the antiferromagnetic oxides NiO and CoO has been investigated. Both compounds show luminescence bands in the visible and near infrared spectral ranges, tentatively attributed to intra-ionic transitions. Dependence of the visible CL intensity with temperature presents anomalies at about half of the Neel temperature, which are explained by the existence of magnetic ordering effects. The results are briefly compared with previous reports on the CL from YBa2Cu3O7-x. (C) 1997 Elsevier Science Ltd.

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收藏

页码：763 / 766

页数：4

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