论文标题

(1 1 0)的通用构建块 - 硅和锗表面

Universal building block for (1 1 0)-family silicon and germanium surfaces

论文作者

Zhachuk, R. A., Shklyaev, A. A.

论文摘要

通用构建块是(1 1 0)硅和锗表面上所有原子结构的重要组成部分,并根据第一原理计算提出了结果,并将结果与​​可用的实验数据进行比较。 (1 1 0) - (16x2),(1 1 0)-c(8x10),(1 1 0) - (1 1 0) - (5x8)和(17 15 1) - (2x1)表面重建的原子模型是根据构件结构而开发的。这些模型表现出非常低的表面能量和与偏置依赖性扫描隧道显微镜(STM)图像的出色协议。使用STM在实验中显示了Si(47 35 7)表面共享相同的构件。我们的研究关闭了(1 1 0)硅和锗表面上的五角大楼结构。

The universal building block which is an essential part of all atomic structures on (1 1 0) silicon and germanium surfaces and their vicinals is proposed from first-principles calculations and a comparison of results with available experimental data. The atomic models for the (1 1 0)-(16x2), (1 1 0)-c(8x10), (1 1 0)-(5x8) and (17 15 1)-(2x1) surface reconstructions are developed on the basis of the building block structure. The models exhibit very low surface energies and excellent agreements with bias-dependent scanning tunneling microscopy (STM) images. It is shown experimentally using STM that the Si(47 35 7) surface shares the same building block. Our study closes the long-debated pentagon structures on (1 1 0) silicon and germanium surfaces.

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