Diffusion by atomic place exchange in ultrathin iron films on Ag(100): An ion scattering spectroscopy study

被引：25

作者：

Canepa, M

Magnano, E

Campora, A

Cantini, P

Salvietti, M

Mattera, L

机构：

[1] UNIV GENOA, DIPARTIMENTO FIS, CFSBT CNR, I-16146 GENOA, ITALY

[2] UNIV GENOA, INFM, I-16146 GENOA, ITALY

来源：

SURFACE SCIENCE | 1996年 / 352卷

关键词：

low energy ion scattering (LEIS); epitaxy; diffusion and migration; surface structure; morphology; roughness and topography; low index single crystal surfaces; iron; silver; metal-metal magnetic thin film structures;

D O I：

10.1016/0039-6028(95)01086-6

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：

The surface composition of ultrathin (0-10 ML) iron films deposited on a well defined Ag(100) substrate at 140 K has been investigated by ion scattering spectroscopy. The data unambiguously show the occurrence of intermixing. The concentration of Ag at the surface decreases rather rapidly with the film thickness but it is still relevant (similar to 10%) even in the case of the thickest layer. The data are interpreted in terms of an atomic place exchange between silver and incident iron atoms at the surface of the growing film.

引用

页码：36 / 40

页数：5

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