Direct observation of surface alloying and interface roughening: growth of Au on Fe(001).
Direct observation of surface alloying and interface roughening: growth of Au on Fe(001).
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直接观察表面合金化和界面粗糙化:Au 在 Fe(001) 上的生长。
DOI:
10.1103/physrevlett.87.246102
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发表时间:
2001
影响因子:
8.6
通讯作者:
H. van Kempen
中科院分区:
文献类型:
--
作者:
M. Bischoff;T. Yamada;A. Quinn;R. G. van der Kraan;H. van Kempen
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).