EVIDENCE FOR 4D FERROMAGNETISM IN 2D SYSTEMS - RU MONOLAYERS ON C(0001) SUBSTRATES

被引：88

作者：

PFANDZELTER, R

STEIERL, G

RAU, C

机构：

[1] RICE UNIV,DEPT PHYS,HOUSTON,TX 77251

[2] RICE UNIV,RICE QUANTUM INST,HOUSTON,TX 77251

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.74.3467

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first observation of 4d ferromagnetism in two-dimensional systems is reported. Using Auger electron spectroscopy, we find that the initial growth of Ru on a C(0001) substrate is lateral until a homogeneous monolayer film is formed. The magnetic properties of the films are studied using spin polarized secondary electron spectroscopy. For one monolayer Ru on C(0001), below a surface Curie temperature of approximately 250 K, nonzero in-plane spin polarization is observed and found to saturate in an applied field of a few tenths of an Oe. The results are discussed in the light of theoretical predictions. © 1995 The American Physical Society.

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页码：3467 / 3470

页数：4

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