Phonon dispersion of monolayer graphite on Pt(111) and NbC surfaces: bond softening and interface structures

Takashi Aizawa; Yeon Hwang; Wataru Hayami; Ryutaro Souda; Shigeki Otani; Yoshio Ishizawa

doi:10.1016/0039-6028(92)90046-9

Phonon dispersion of monolayer graphite on Pt(111) and NbC surfaces: bond softening and interface structures

Takashi Aizawa, Yeon Hwang, Wataru Hayami, Ryutaro Souda, Shigeki Otani, Yoshio Ishizawa

Dept. of Materials Science & Engineering

National Institute for Materials Science Tsukuba

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

72 Scopus citations

Abstract

The phonon dispersion relations of monolayer graphite on Pt(111), NbC(111) and NbC(001) were measured by electron energy loss spectroscopy. The monolayer graphite on Ni surfaces has been reported to show large softening, while that on Pt(111) was found to indicate little softening and rather resembled pristine graphite. Similarly, the monolayer graphite on NbC(111) indicated fairly large softening but that on NbC(001) did not. This difference is discussed in relation with the interface structure.

Original language	English
Pages (from-to)	311-318
Number of pages	8
Journal	Surface Science
Volume	260
Issue number	1-3
DOIs	https://doi.org/10.1016/0039-6028(92)90046-9
State	Published - 1 Jan 1992

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abstract = "The phonon dispersion relations of monolayer graphite on Pt(111), NbC(111) and NbC(001) were measured by electron energy loss spectroscopy. The monolayer graphite on Ni surfaces has been reported to show large softening, while that on Pt(111) was found to indicate little softening and rather resembled pristine graphite. Similarly, the monolayer graphite on NbC(111) indicated fairly large softening but that on NbC(001) did not. This difference is discussed in relation with the interface structure.",

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T1 - Phonon dispersion of monolayer graphite on Pt(111) and NbC surfaces

T2 - bond softening and interface structures

AU - Aizawa, Takashi

AU - Hwang, Yeon

AU - Hayami, Wataru

AU - Souda, Ryutaro

AU - Otani, Shigeki

AU - Ishizawa, Yoshio

PY - 1992/1/1

Y1 - 1992/1/1

N2 - The phonon dispersion relations of monolayer graphite on Pt(111), NbC(111) and NbC(001) were measured by electron energy loss spectroscopy. The monolayer graphite on Ni surfaces has been reported to show large softening, while that on Pt(111) was found to indicate little softening and rather resembled pristine graphite. Similarly, the monolayer graphite on NbC(111) indicated fairly large softening but that on NbC(001) did not. This difference is discussed in relation with the interface structure.

AB - The phonon dispersion relations of monolayer graphite on Pt(111), NbC(111) and NbC(001) were measured by electron energy loss spectroscopy. The monolayer graphite on Ni surfaces has been reported to show large softening, while that on Pt(111) was found to indicate little softening and rather resembled pristine graphite. Similarly, the monolayer graphite on NbC(111) indicated fairly large softening but that on NbC(001) did not. This difference is discussed in relation with the interface structure.

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DO - 10.1016/0039-6028(92)90046-9

M3 - Article

AN - SCOPUS:0026638529

SN - 0039-6028

VL - 260

SP - 311

EP - 318

JO - Surface Science

JF - Surface Science

IS - 1-3

ER -

Phonon dispersion of monolayer graphite on Pt(111) and NbC surfaces: bond softening and interface structures

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