Extended X-ray absorption fine structure investigation of the structure of iron overlayers on Cu(111)

被引：4

作者：

Butterfield, MT ^{[1
]}

Crapper, MD ^{[1
]}

机构：

[1] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England

来源：

SURFACE SCIENCE | 2000年 / 454卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

cooper; iron; metal-metal magnetic thin film structures; surface extended X-ray absorption fine structure (SEXAFS); surface structure; morphology; roughness; and topography;

D O I：

10.1016/S0039-6028(00)00092-3

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：

Surface extended X-ray absorption fine structure (SEXAFS) has been used to probe the structure of ultrathin films of iron on Cu(111), With increasing film thickness, the interatomic separation falls from 2.57 Angstrom rapidly towards that of bulk iron (2.48 Angstrom). The degree of order and coordination in the films also fall over this region. These changes are consistent with a loss of face-centred cubic structure. However, the structure does not exhibit a clear body-centred cubic SEXAFS fingerprint until around eight layers. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：719 / 722

页数：4

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