Heteroepitaxial film of monolayer graphene/monolayer h-BN on Ni(111)

T. Tanaka; A. Ito; A. Tajima; E. Rokuta; C. Oshima

doi:10.1142/S0218625X03005529

Heteroepitaxial film of monolayer graphene/monolayer h-BN on Ni(111)

T. Tanaka, A. Ito, A. Tajima, E. Rokuta, C. Oshima

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

13 Citations (Scopus)

Abstract

Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films on Ni(111), have been investigated by means of vibrational spectroscopy, low energy electron diffraction and Auger electron spectroscopy. Vibrational spectra of the heteroepitaxial film show the appearance of transverse optical (TO_⊥) modes with out-of-plane polarization at 100 meV of the monolayer h-BN, in contrast to the softening phonon at 90 meV on the pristine system of monolayer h-BN on Ni(111). The findings strongly suggest that the interfacial bonds between h-BN and Ni(111) weaken due to the formation of monolayer graphene.

Original language	English
Pages (from-to)	721-726
Number of pages	6
Journal	Surface Review and Letters
Volume	10
Issue number	5
DOIs	https://doi.org/10.1142/S0218625X03005529
Publication status	Published - 2003 Oct

Keywords

Graphite
h-BN
HREELS
Phonon

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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10.1142/S0218625X03005529

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title = "Heteroepitaxial film of monolayer graphene/monolayer h-BN on Ni(111)",

abstract = "Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films on Ni(111), have been investigated by means of vibrational spectroscopy, low energy electron diffraction and Auger electron spectroscopy. Vibrational spectra of the heteroepitaxial film show the appearance of transverse optical (TO⊥) modes with out-of-plane polarization at 100 meV of the monolayer h-BN, in contrast to the softening phonon at 90 meV on the pristine system of monolayer h-BN on Ni(111). The findings strongly suggest that the interfacial bonds between h-BN and Ni(111) weaken due to the formation of monolayer graphene.",

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T1 - Heteroepitaxial film of monolayer graphene/monolayer h-BN on Ni(111)

AU - Tanaka, T.

AU - Ito, A.

AU - Tajima, A.

AU - Rokuta, E.

AU - Oshima, C.

PY - 2003/10

Y1 - 2003/10

N2 - Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films on Ni(111), have been investigated by means of vibrational spectroscopy, low energy electron diffraction and Auger electron spectroscopy. Vibrational spectra of the heteroepitaxial film show the appearance of transverse optical (TO⊥) modes with out-of-plane polarization at 100 meV of the monolayer h-BN, in contrast to the softening phonon at 90 meV on the pristine system of monolayer h-BN on Ni(111). The findings strongly suggest that the interfacial bonds between h-BN and Ni(111) weaken due to the formation of monolayer graphene.

AB - Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films on Ni(111), have been investigated by means of vibrational spectroscopy, low energy electron diffraction and Auger electron spectroscopy. Vibrational spectra of the heteroepitaxial film show the appearance of transverse optical (TO⊥) modes with out-of-plane polarization at 100 meV of the monolayer h-BN, in contrast to the softening phonon at 90 meV on the pristine system of monolayer h-BN on Ni(111). The findings strongly suggest that the interfacial bonds between h-BN and Ni(111) weaken due to the formation of monolayer graphene.

KW - Graphite

KW - h-BN

KW - HREELS

KW - Phonon

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JF - Surface Review and Letters

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Heteroepitaxial film of monolayer graphene/monolayer h-BN on Ni(111)

Abstract

Keywords

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