用扫描隧道显微镜研究分子束外延室中制备的(8 × n)型Si(001)表面的结构和特性
Structure and peculiarities of the (8 x n)-type Si(001) surface prepared in a molecular-beam epitaxy chamber: a scanning tunneling microscopy study
摘要:
用扫描隧道显微镜研究了在真空分子束外延室中热提纯的干净Si(001)表面。详细地研究了Si(001)表面的形貌特征。进行了表面结构元素的分类,测量了元素的尺寸,并确定了表面起伏的相对高度。在分子束外延室中制备的Si(001)表面的重构已被发现为(8 × n)。提出了Si(001)-(8 × n)表面结构模型。
英文摘要:
A clean Si(001) surface thermally purified in an ultrahigh vacuum molecular-beam epitaxy chamber has been investigated by means of scanning tunneling microscopy. The morphological peculiarities of the Si(001) surface have been explored in detail. The classification of the surface structure elements has been carried out, the dimensions of the elements have been measured, and the relative heights of the surface relief have been determined. A reconstruction of the Si(001) surface prepared in the molecular-beam epitaxy chamber has been found to be (8 x n). A model of the Si(001)-(8 x n) surface structure is proposed.
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