Direct observation of surface alloying and interface roughening: Growth of an on Fe(001)

被引：31
|
作者：
Bischoff, MMJ [1 ]
Yamada, T [1 ]
Quinn, AJ [1 ]
van der Kraan, RGP [1 ]
van Kempen, H [1 ]
机构：
[1] Univ Nijmegen, Mat Res Inst, NL-6525 ED Nijmegen, Netherlands
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.87.246102
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Scanning tunneling microscopy studies on the growth of Au on Fe(001) are reported. A surface alloy is observed for submonolayer deposition (<0.5 monolayer) at temperatures higher than 370 K. This surface-confined alloy demixes when it is covered with Au and in combination with imperfect layer-by-layer growth a rough interface consisting of Au islands in and Fe islands on the original Fe(001) substrate is created. A real-space high resolution study of this buried interface is possible because of the large difference in interlayer spacing between bcc Fe(001) and fcc Au(001).
引用
收藏
页码：246102 / 1
页数：4
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