Magnetic behavior of Na films with Fe, Co, and Ni impurities

被引：14

作者：

Bergmann, G ^{[1
]}

Hossain, M ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.86.2138

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Thin films of Na with Fe, Co, and Ni impurities are investigated. The magnetization of the impurities is measured by means of the anomalous Hall resistance. Fe and Co show a moment of about 6 mu (B), while for Ni no moment is detected. Furthermore, the magnetic dephasing of the conduction electrons is measured by means of weak localization. The dephasing rate 1/tau (phi) of the 3d impurities differ qualitative ly. For Fe impurities, 1/tau (phi) is so large that it cannot be measured. For Co, 1/tau (phi) has a moderate value while Ni shows hardly a dephasing effect at all.

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页码：2138 / 2141

页数：4

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