Evidence for ferromagnetic order at the FeO(111) surface

被引：56

作者：

Koike, K

Furukawa, T

机构：

[1] Advanced Research Laboratory, Hitachi, Ltd., Saitama, 350-03, Hatoyama

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.77.3921

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By using spin-polarized secondary electron spectroscopy, we have found that the surface of FeO(lll) prepared by oxidation of Fe(110) is ferromagnetically ordered above the hulk Neel temperature of 198 K. A possible cause of the ordering is the reconstruction of a polar FeO(lll) surface to reduce electrostatic surface energy.

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页码：3921 / 3924

页数：4

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