Mystery of the alkali metals: Giant moments of Fe and Co on and in Cs films

被引：46

作者：

Beckmann, H ^{[1
]}

Bergmann, G ^{[1
]}

机构：

[1] Univ So Calif, Dept Phys, Los Angeles, CA 90089 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.83.2417

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Thin films of Cs are covered with 1/100 of a monolayer of Fe or Co. Then the impurities are covered with several atomic layers of Cs. The magnetization of the films is measured by means of the anomalous Hall effect. The magnetization follows a Brillouin function with a magnetic moment of about 8 Bohr magnetons for Co on the surface and in the bulk of the Cs. For the Fe impurities, a magnetic moment of 7 Bohr magnetons is observed. These large moments suggest that the 3d impurities polarize the conduction electrons of the Cs similar to the giant moments in Pd.

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页码：2417 / 2420

页数：4

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