Scanning Tunneling Microscope Study of the Structural Transformation of the Si(111)7×7 Surface to the Na-Induced 3×1 Surface

Dong Ryul Jeon; Tomihiro Hashizume; Xiangdong Wang; Chunli Bai; Kumi Motai; Toshio Sakurai

doi:10.1143/JJAP.31.L501

Scanning Tunneling Microscope Study of the Structural Transformation of the Si(111)7×7 Surface to the Na-Induced 3×1 Surface

Dong Ryul Jeon, Tomihiro Hashizume, Xiangdong Wang, Chunli Bai, Kumi Motai, Toshio Sakurai

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The structure of the Na-induced Si(111) 3×1 surface has been studied using a field-ion-scanning-tunneling-microscope. The STM images showed that the entire Si surface was uniformly covered with a single layer of atomically resolved Na 3×1 structure. Upon annealing, the Na layer peeled off gradually, revealing the underlying Si substrate, which exhibited various intermediate reconstructions such as 2×2, 5×5, and 9×9 before the 7×7 structure was restored at 800°C. Our observations suggest that the top layer of the Si substrate converts to the bulk terminated 1×1 structure upon Na deposition and annealing.

Original language	English
Pages (from-to)	L501-L504
Journal	Japanese journal of applied physics
Volume	31
Issue number	4
DOIs	https://doi.org/10.1143/JJAP.31.L501
Publication status	Published - 1992 Apr
Externally published	Yes

Keywords

Alkali metal
Epitaxial growth
Na adsorption
Stm, Si(111)

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.31.L501

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title = "Scanning Tunneling Microscope Study of the Structural Transformation of the Si(111)7×7 Surface to the Na-Induced 3×1 Surface",

abstract = "The structure of the Na-induced Si(111) 3×1 surface has been studied using a field-ion-scanning-tunneling-microscope. The STM images showed that the entire Si surface was uniformly covered with a single layer of atomically resolved Na 3×1 structure. Upon annealing, the Na layer peeled off gradually, revealing the underlying Si substrate, which exhibited various intermediate reconstructions such as 2×2, 5×5, and 9×9 before the 7×7 structure was restored at 800°C. Our observations suggest that the top layer of the Si substrate converts to the bulk terminated 1×1 structure upon Na deposition and annealing.",

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AU - Jeon, Dong Ryul

AU - Hashizume, Tomihiro

AU - Wang, Xiangdong

AU - Bai, Chunli

AU - Motai, Kumi

AU - Sakurai, Toshio

PY - 1992/4

Y1 - 1992/4

N2 - The structure of the Na-induced Si(111) 3×1 surface has been studied using a field-ion-scanning-tunneling-microscope. The STM images showed that the entire Si surface was uniformly covered with a single layer of atomically resolved Na 3×1 structure. Upon annealing, the Na layer peeled off gradually, revealing the underlying Si substrate, which exhibited various intermediate reconstructions such as 2×2, 5×5, and 9×9 before the 7×7 structure was restored at 800°C. Our observations suggest that the top layer of the Si substrate converts to the bulk terminated 1×1 structure upon Na deposition and annealing.

AB - The structure of the Na-induced Si(111) 3×1 surface has been studied using a field-ion-scanning-tunneling-microscope. The STM images showed that the entire Si surface was uniformly covered with a single layer of atomically resolved Na 3×1 structure. Upon annealing, the Na layer peeled off gradually, revealing the underlying Si substrate, which exhibited various intermediate reconstructions such as 2×2, 5×5, and 9×9 before the 7×7 structure was restored at 800°C. Our observations suggest that the top layer of the Si substrate converts to the bulk terminated 1×1 structure upon Na deposition and annealing.

KW - Alkali metal

KW - Epitaxial growth

KW - Na adsorption

KW - Stm, Si(111)

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Scanning Tunneling Microscope Study of the Structural Transformation of the Si(111)7×7 Surface to the Na-Induced 3×1 Surface

Abstract

Keywords

ASJC Scopus subject areas

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