Pb thin films on Si(111): Local density of states and defects

机译：Si（111）上的Pb薄膜：状态和缺陷的局部密度

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摘要

Local density of states and atomic structure of the stripped incommensurate phase, the √(3) ×√(7) phase and the 1 × 1 phase of a monolayer of Pb on Si(111) are characterized by scanning tunneling microscopy and spectroscopy. The dI/dV-images reveal congruent local density of states structures for the stripped incommensurate and the √(3) ×√(7) phase but suggest a hexagonal lattice of the local density of states for the 1×1 phase while the atomic structure consists of one more atom in the center of each hexagon. Vacancy defects and impurities show a depletion of local density of states for the stripped incommensurate and √(3) ×√(7) phase. Vacancies and impurities show an increase and no clear depletion in local density of states for the 1 × 1 phase, respectively.

机译：通过扫描隧道显微镜和光谱法表征了在Si（111）上Pb单层的不相称相，√（3）×√（7）相和1×1相的局部状态密度和原子结构。 dI / dV图像揭示了剥离的不相称和√（3）×√（7）相的状态结构的全同局部密度，但建议了1×1相的原子状态的局部六方晶格，而原子结构在每个六角形的中心由一个以上的原子组成。空位缺陷和杂质显示了剥离的不相称和√（3）×√（7）相的局部状态密度的耗尽。对于1×1相，空位和杂质分别显示出局部状态密度的增加和明显减少。

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来源
《2014 International Conference on Nanoscience and Nanotechnology》|2014年|54-56|共3页
会议地点 Adelaide(AU)
作者
Eilers S.; Yi Du; Shi Xue Dou;
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作者单位

Inst. for Supercond. Electron. Mater., Univ. of Wollongong, Wollongong, NSW, Australia;

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原文格式 PDF
正文语种 eng
中图分类
关键词
electronic density of states; impurities; lead; metallic thin films; monolayers; scanning tunnelling microscopy; scanning tunnelling spectroscopy; surface structure; vacancies (crystal); √(3) ×√(7) phase; Pb; Pb thin films; Si; Si(111) surface; atomic structure; dI/dV-images; hexagonal lattice; impurities; local density of states; monolayers; scanning tunneling microscopy; scanning tunneling spectroscopy; stripped incommensurate phase; vacancies; Atomic layer deposition; Atomic measurements; Impurities; Lattices; Lead; Sili;

机译：电子态密度;杂质;铅;金属薄膜;单层;扫描隧道显微镜;扫描隧道光谱;表面结构;空位（晶体）;√（3）×√（7）相; Pb; Pb薄膜; Si; Si（111）表面;原子结构; dI / dV图像;六边形晶格;杂质;态的局部密度;单层;扫描隧道显微镜;扫描隧道光谱;剥离不相称的相;空位;原子层沉积;原子测量;杂质;格;铅;硅;

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机译：Si（111）上的Pb薄膜：状态和缺陷的局部密度

Pb thin films on Si(111): Local density of states and defects

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