Scanning tunneling microscopy image of transition-metal-dichalcogenide surfaces

Katsuyoshi Kobayashi; Jun Yamauchi

doi:10.1016/0039-6028(96)00173-2

Scanning tunneling microscopy image of transition-metal-dichalcogenide surfaces

Katsuyoshi Kobayashi, Jun Yamauchi

研究成果: Article › 査読

4 被引用数 (Scopus)

抄録

Scanning tunneling microscopy (STM) images of transition-metal-dichalcogenide (TMD) surfaces are studied theoretically. First, STM images of the MoS₂ surface are calculated by the first-principles method with a plane-wave basis, where it has not been settled whether the first or second layer is observed in STM. It is determined theoretically that the bright spots observed in the experimental STM images correspond to the S atoms of the outermost layer. Second, the superstructures observed in the STM images of the heteroepitaxial TMDs such as the MoSe₂/MoS₂ surface are investigated. It is found that the effect of the atomic displacement is an important factor in explaining the features of the superstructures.

本文言語	English
ページ（範囲）	317-321
ページ数	5
ジャーナル	Surface Science
巻	357-358
DOI	https://doi.org/10.1016/0039-6028(96)00173-2
出版ステータス	Published - 1996 6 20
外部発表	はい

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

文献へのアクセス

10.1016/0039-6028(96)00173-2

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引用スタイル

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abstract = "Scanning tunneling microscopy (STM) images of transition-metal-dichalcogenide (TMD) surfaces are studied theoretically. First, STM images of the MoS2 surface are calculated by the first-principles method with a plane-wave basis, where it has not been settled whether the first or second layer is observed in STM. It is determined theoretically that the bright spots observed in the experimental STM images correspond to the S atoms of the outermost layer. Second, the superstructures observed in the STM images of the heteroepitaxial TMDs such as the MoSe2/MoS2 surface are investigated. It is found that the effect of the atomic displacement is an important factor in explaining the features of the superstructures.",

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