Oxidation of the Fe(110) surface:: An Fe3O4(111)/Fe(110) bilayer

被引：92

作者：

Kim, HJ ^{[1
]}

Park, JH ^{[1
]}

Vescovo, E ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.61.15284

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation state and magnetic behavior of in situ oxidized Fe(110) surfaces has been studied using x-ray absorption spectroscopy and magnetic circular dichroism (MCD). Low-energy electron diffraction has been used to monitor the surface atomic structure. At high oxygen exposures, the system is unambiguously identified as an Fe3O4(111)/Fe(110) bilayer. The MCD results show that the Fe3O4, overlayer is magnetically coupled (antiparallel) to the Fe substrate. This picture is in contrast to a previous report, which claims the formation of an FeO(111) overlayer with a reconstructed magnetic surface [Phys. Rev. Lett. 77, 3921 (1996)].

引用

页码：15284 / 15287

页数：4

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