Double atomic layers of graphene/monolayer h-BN on Ni(111) studied by scanning tunneling microscopy and scanning tunneling spectroscopy

Toyosei Kawasaki; Takashi Ichimura; Hiroshi Kishimoto; Ade Asneil Akbar; Takashi Ogawa; Chuhei Oshima

Double atomic layers of graphene/monolayer h-BN on Ni(111) studied by scanning tunneling microscopy and scanning tunneling spectroscopy

Toyosei Kawasaki, Takashi Ichimura, Hiroshi Kishimoto, Ade Asneil Akbar, Takashi Ogawa, Chuhei Oshima

Waseda University

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

36 Citations (Scopus)

Abstract

Using STM, we have directly confirmed the incommensurate stacking of double atomic layers of graphene and monolayer h-BN on Ni(111). The formation of a graphene layer weakens the interfacial interaction between monolayer h-BN and Ni(111), resulting in insulating h-BN layers, while a pristine monolayer h-BN on Ni(111) is metallic. The STS spectra of the double atomic layers showed a tunneling character with a band gap of 0.5 eV.

Original language	English
Pages (from-to)	1459-1464
Number of pages	6
Journal	Surface Review and Letters
Volume	9
Issue number	3-4
Publication status	Published - 2002 Jun

Keywords

Graphene
h-BN
Ni(111)
STM
STS

ASJC Scopus subject areas

Materials Science(all)
Surfaces and Interfaces
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electronic, Optical and Magnetic Materials

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Double atomic layers of graphene/monolayer h-BN on Ni(111) studied by scanning tunneling microscopy and scanning tunneling spectroscopy. / Kawasaki, Toyosei; Ichimura, Takashi; Kishimoto, Hiroshi; Akbar, Ade Asneil; Ogawa, Takashi; Oshima, Chuhei.

In: Surface Review and Letters, Vol. 9, No. 3-4, 06.2002, p. 1459-1464.

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

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abstract = "Using STM, we have directly confirmed the incommensurate stacking of double atomic layers of graphene and monolayer h-BN on Ni(111). The formation of a graphene layer weakens the interfacial interaction between monolayer h-BN and Ni(111), resulting in insulating h-BN layers, while a pristine monolayer h-BN on Ni(111) is metallic. The STS spectra of the double atomic layers showed a tunneling character with a band gap of 0.5 eV.",

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AU - Akbar, Ade Asneil

AU - Ogawa, Takashi

AU - Oshima, Chuhei

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N2 - Using STM, we have directly confirmed the incommensurate stacking of double atomic layers of graphene and monolayer h-BN on Ni(111). The formation of a graphene layer weakens the interfacial interaction between monolayer h-BN and Ni(111), resulting in insulating h-BN layers, while a pristine monolayer h-BN on Ni(111) is metallic. The STS spectra of the double atomic layers showed a tunneling character with a band gap of 0.5 eV.

AB - Using STM, we have directly confirmed the incommensurate stacking of double atomic layers of graphene and monolayer h-BN on Ni(111). The formation of a graphene layer weakens the interfacial interaction between monolayer h-BN and Ni(111), resulting in insulating h-BN layers, while a pristine monolayer h-BN on Ni(111) is metallic. The STS spectra of the double atomic layers showed a tunneling character with a band gap of 0.5 eV.

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KW - Ni(111)

KW - STM

KW - STS

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