Structural transformation of the Si(111) (7 X 7)-to-(3 X 1) surface structure induced by sodium

D. Jeon; T. Hashizume; X. Wang; K. Motai; T. Sakurai

doi:10.1016/0169-4332(93)90322-3

Structural transformation of the Si(111) (7 X 7)-to-(3 X 1) surface structure induced by sodium

D. Jeon, T. Hashizume, X. Wang, K. Motai, T. Sakurai

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

4 Citations (Scopus)

Abstract

A field ion-scanning tunneling microscope has been used to study the structure of the Na-induced Si(111)(3 X 1) surface. The STM images showed that the entire Si surface was uniformly covered with a single layer of the Na(3 X 1) structure. Upon further Na deposition onto this surface a well ordered Na multilayer was formed via Stranski-Krastanov growth mode. Tunneling spectroscopy performed on the surfaces at various Na coverages revealed that the first Na layer was insulating, but the insulator-metal transition of the Na overlayer occured in the second layer.

Original language	English
Pages (from-to)	257-260
Number of pages	4
Journal	Applied Surface Science
Volume	67
Issue number	1-4
DOIs	https://doi.org/10.1016/0169-4332(93)90322-3
Publication status	Published - 1993 Apr 2

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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abstract = "A field ion-scanning tunneling microscope has been used to study the structure of the Na-induced Si(111)(3 X 1) surface. The STM images showed that the entire Si surface was uniformly covered with a single layer of the Na(3 X 1) structure. Upon further Na deposition onto this surface a well ordered Na multilayer was formed via Stranski-Krastanov growth mode. Tunneling spectroscopy performed on the surfaces at various Na coverages revealed that the first Na layer was insulating, but the insulator-metal transition of the Na overlayer occured in the second layer.",

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AU - Jeon, D.

AU - Hashizume, T.

AU - Wang, X.

AU - Motai, K.

AU - Sakurai, T.

PY - 1993/4/2

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AB - A field ion-scanning tunneling microscope has been used to study the structure of the Na-induced Si(111)(3 X 1) surface. The STM images showed that the entire Si surface was uniformly covered with a single layer of the Na(3 X 1) structure. Upon further Na deposition onto this surface a well ordered Na multilayer was formed via Stranski-Krastanov growth mode. Tunneling spectroscopy performed on the surfaces at various Na coverages revealed that the first Na layer was insulating, but the insulator-metal transition of the Na overlayer occured in the second layer.

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