Surface morphology and chemical ordering in FePd/Pd(001) thin layers

被引：17

作者：

Halley, D

Samson, Y

Marty, A

Beigné, C

Gilles, B

机构：

[1] CEA, Grenoble Dept Rech Fondamentale Matiere Condensee, Serv Phys Mat & Microstruct, F-38054 Grenoble 9, France

[2] CNRS, LTPCM, ENSEEG, F-38045 Grenoble, France

来源：

SURFACE SCIENCE | 2001年 / 481卷 / 1-3期

关键词：

molecular beam epitaxy; scanning tunneling microscopy; surface segregation; morphology; roughness; and topography; iron; palladium; alloys; metallic surfaces;

D O I：

10.1016/S0039-6028(01)01061-5

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：

The FePd alloy exhibits an L1(0) (CuAu-I type) chemically ordered phase which can be grown by molecular beam epitaxy at a low temperature (620 K) on Pd(0 0 1). The surface of the alloy has been observed by scanning tunnelling microscopy to determine the link between the surface morphology and the underlying chemical order. Steps are commonly observed with a bi-atomic height as a result of the surface processes leading to the chemical ordering. Monoatomic steps are also observed and there is some evidence that they are linked to the antiphase boundaries between ordered domains within the growing layer. (C) 2001 Published by Elsevier Science B.V.

引用

页码：25 / 32

页数：8

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