Epitaxial thin NiO films grown on Fe(001) and the effect of temperature

被引：27

作者：

Duò, L ^{[1
]}

Portalupi, M ^{[1
]}

Marcon, M ^{[1
]}

Bertacco, R ^{[1
]}

Ciccacci, F ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Fis, INFM, I-20133 Milan, Italy

来源：

SURFACE SCIENCE | 2002年 / 518卷 / 03期

关键词：

inverse photoemission spectroscopy; surface segregation; iron; nickel oxides; single crystal epitaxy; magnetic surfaces; metal-insulator interfaces;

D O I：

10.1016/S0039-6028(02)02194-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thin NiO(001) films have been epitaxially grown on a ferromagnetic Fe substrate. They have been investigated by X-ray photoemission and spin-resolved inverse photoemission spectroscopies, and compared with films grown in the same conditions on Ag(0 01). Well ordered and good quality films are obtained in most cases, while defect states within the fundamental gap are detected only in few cases. Upon annealing these films above 600 K a Ni-Fe substitution reaction occurs in the film, leading to the formation of an Fe oxide film at the surface, while Ni atoms dissolve into the substrate. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：234 / 242

页数：9

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