High-quality Fe(001) single crystal films on MgO(001) substrates for electron spectroscopies

被引：58

作者：

Bertacco, R ^{[1
]}

De Rossi, S ^{[1
]}

Ciccacci, F ^{[1
]}

机构：

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

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1998年 / 16卷 / 04期

关键词：

D O I：

10.1116/1.581340

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fe films have been prepared in ultrahigh vacuum by epitaxial growth on MgO(001) substrates. Spin-resolved inverse photoemission measurements indicate that nonannealed overlayers display lower spectroscopic quality than the corresponding bulk system. Low energy electron diffraction and x-ray photoemission reveal that annealing promotes oxygen surface segregation giving rise to a c(2 x 2) reconstruction even in several hundred Angstrom thick films. It is found that high-quality Fe(001) single crystal films with clean and well ordered surfaces can be obtained after high temperature annealing (similar to 600 degrees C) of relatively thick films (>1000 Angstrom). (C) 1998 American Vacuum Society. [S0734-2101(98)05604-8].

引用

页码：2277 / 2280

页数：4

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