The composition and structure of Cu3Au(110)-(4x1): A low-energy electron diffraction analysis

被引:14
作者
Over, H [1 ]
Gilarowski, G [1 ]
Niehus, H [1 ]
机构
[1] HUMBOLDT UNIV BERLIN,INST PHYS OBERFLACHENPHYS & ATOMSTOSSPROZESSE,D-10115 BERLIN,GERMANY
关键词
alloys; copper; gold; low energy electron diffraction; surface structure;
D O I
10.1016/S0039-6028(97)00086-1
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 structure of the clean Cu3Au(110)-(4 x 1) surface has been determined using quantitative LEED. It turned out that in the first layer, Cu and Au rows along the [001] direction pair up to build the (4 x 1) periodicity. The second layer contains at least 25%, Au so that the surface region is Au-enriched. The resulting structure can be regarded as a monatomic-thick Au wire embedded in a Cu matrix. (C) 1997 Elsevier Science B.V.
引用
收藏
页码:L619 / L622
页数:4
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