Three-Dimensional Atomic Images of As/Si\(111\) Obtained by Derivative Photoelectron Holography
Three-Dimensional Atomic Images of As/Si\(111\) Obtained by Derivative Photoelectron Holography
复制标题
导数光电子全息法获得As/Si(111)三维原子图像
DOI：
10.1103/physrevlett.81.4160
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发表时间：
1998
影响因子：
8.6
通讯作者：
T. Chiang
中科院分区：
文献类型：
--
作者：
D. Luh;T. Miller;T. Chiang
用基于微分测量的光电子全息新技术对As端Si（111）的原子结构进行了成像。该技术的改进的灵敏度允许检测第二最近的邻居。从As和Si芯能级发射推导出的图像提供了涉及顶部三个原子层的键合结构的详细三维视图。结果为As替代Si原子层提供了直接证据。{版权} {美国物理学会}
The atomic structure of As-terminated Si(111) is imaged by a new technique of photoelectron holography based on differential measurements. The improved sensitivity of this technique allows second nearest neighbors to be detected. Images deduced from both the As and the Si core level emission provide a detailed three-dimensional view of the bonding structure involving the top three atomic layers. The results provide direct evidence for As replacement of the top Si atomic layer. {copyright} {ital 1998} {ital The American Physical Society}