Surface phonon of MgO layer on TiC(100) surface

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

doi:10.1143/jjap.36.5707

Surface phonon of MgO layer on TiC(100) surface

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

Dept. of Materials Science & Engineering

National Institute for Materials Science Tsukuba

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

5 Scopus citations

Abstract

The surface phonon of a hetero-epitaxial MgO layer on a TiC(100) surface has been investigated using high-resolution electron energy loss spectroscopy (HREELS). The Fuchs-Kliewer, Rayleigh and Wallis modes of MgO were detected. The vibration energy of the F-K wave in the MgO layer was higher than that of a MgO single crystal due to the two-dimensional character of the MgO layer. The Rayleigh mode having almost the same dispersion relationship with bulk MgO was measured at the non-zero wave vector. Among the microscopic surface phonons, the Wallis mode (82) has been detected, vibrational energy of which was the same as that of bulk.

Original language	English
Pages (from-to)	5707-5708
Number of pages	2
Journal	Japanese Journal of Applied Physics
Volume	36
Issue number	9 A
DOIs	https://doi.org/10.1143/jjap.36.5707
State	Published - Sep 1997

Keywords

Fuchs-Kliewer mode
MgO epitaxial layer
Rayleigh mode
TiC(100) substrate
Wallis mode

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10.1143/jjap.36.5707

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title = "Surface phonon of MgO layer on TiC(100) surface",

abstract = "The surface phonon of a hetero-epitaxial MgO layer on a TiC(100) surface has been investigated using high-resolution electron energy loss spectroscopy (HREELS). The Fuchs-Kliewer, Rayleigh and Wallis modes of MgO were detected. The vibration energy of the F-K wave in the MgO layer was higher than that of a MgO single crystal due to the two-dimensional character of the MgO layer. The Rayleigh mode having almost the same dispersion relationship with bulk MgO was measured at the non-zero wave vector. Among the microscopic surface phonons, the Wallis mode (82) has been detected, vibrational energy of which was the same as that of bulk.",

keywords = "Fuchs-Kliewer mode, MgO epitaxial layer, Rayleigh mode, TiC(100) substrate, Wallis mode",

author = "Yeon Hwang and Ryutaro Souda and Takashi Aizawa and Wataru Hayami and Shigeki Otani and Yoshio Ishizawa",

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language = "English",

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TY - JOUR

T1 - Surface phonon of MgO layer on TiC(100) surface

AU - Hwang, Yeon

AU - Souda, Ryutaro

AU - Aizawa, Takashi

AU - Hayami, Wataru

AU - Otani, Shigeki

AU - Ishizawa, Yoshio

PY - 1997/9

Y1 - 1997/9

N2 - The surface phonon of a hetero-epitaxial MgO layer on a TiC(100) surface has been investigated using high-resolution electron energy loss spectroscopy (HREELS). The Fuchs-Kliewer, Rayleigh and Wallis modes of MgO were detected. The vibration energy of the F-K wave in the MgO layer was higher than that of a MgO single crystal due to the two-dimensional character of the MgO layer. The Rayleigh mode having almost the same dispersion relationship with bulk MgO was measured at the non-zero wave vector. Among the microscopic surface phonons, the Wallis mode (82) has been detected, vibrational energy of which was the same as that of bulk.

AB - The surface phonon of a hetero-epitaxial MgO layer on a TiC(100) surface has been investigated using high-resolution electron energy loss spectroscopy (HREELS). The Fuchs-Kliewer, Rayleigh and Wallis modes of MgO were detected. The vibration energy of the F-K wave in the MgO layer was higher than that of a MgO single crystal due to the two-dimensional character of the MgO layer. The Rayleigh mode having almost the same dispersion relationship with bulk MgO was measured at the non-zero wave vector. Among the microscopic surface phonons, the Wallis mode (82) has been detected, vibrational energy of which was the same as that of bulk.

KW - Fuchs-Kliewer mode

KW - MgO epitaxial layer

KW - Rayleigh mode

KW - TiC(100) substrate

KW - Wallis mode

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U2 - 10.1143/jjap.36.5707

DO - 10.1143/jjap.36.5707

M3 - Article

AN - SCOPUS:0031221766

SN - 0021-4922

VL - 36

SP - 5707

EP - 5708

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 9 A

ER -

Surface phonon of MgO layer on TiC(100) surface

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Keywords

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