Structure determination of surface magic clusters.
Structure determination of surface magic clusters.
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表面魔法簇的结构测定。
DOI：
10.1103/physrevlett.92.066103
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发表时间：
2004
影响因子：
8.6
通讯作者：
Y. Wang
中科院分区：
文献类型：
--
作者：
H. Chang;M. Lai;J. H. Wei;C. Wei;Y. Wang
结合扫描隧道显微镜、密度泛函计算和动态低能电子衍射，确定了一类表面幻数团簇的结构。衍射方法是适用的，因为通过沉积在Si（111）-7x7表面上的Ga的分级自组织产生的这些簇具有相同的尺寸和结构，并且形成具有精确平移对称性的有序阵列。由衍射测量提供的前所未有的详细结构信息与直接显微成像和理论计算一致。
The structure of a type of surface magic cluster is determined by a combination of scanning tunneling microscopy, density-functional calculations, and dynamical low energy electron diffraction. The diffraction method is applicable because these clusters created through hierarchical self-organization of Ga deposited onto a Si(111)-7x7 surface have identical size and structure and form an ordered array with exact translational symmetry. The unprecedented detailed structure information provided by the diffraction measurement is consistent with direct microscopic imaging and theoretical calculations.