Abstract
Hexagonal boron nitride (h-BN) and graphite films on faceted Ni(755) have been investigated by means of vibrational spectroscopy, accompanied by low energy electron diffraction and Auger electron spectroscopy. A faceted surface consisting of the (111) face and high-Miller index face has been grown by the adsorption of monolayer films. Vibrational spectra of the monolayer h-BN have exhibited two peaks at 90 and 97 meV, which originate from the optical phonons with out-of-plane displacement (TO⊥) of the films adsorbed on the faceted (111) and the other high-index faces, respectively. These peaks indicate that the bond strength between h-BN films and a Ni face depends on the Ni face orientation. On the contrary, only one peak of TO⊥ mode has appeared in the monolayer graphite on the same faceted surface. The single peak means a similar strength of the interfacial bond on various surfaces.
| Original language | English |
|---|---|
| Pages (from-to) | 97-101 |
| Number of pages | 5 |
| Journal | Surface Science |
| Volume | 427-428 |
| DOIs | |
| Publication status | Published - 1999 Jun 1 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Condensed Matter Physics
- Surfaces and Interfaces
Cite this
Vibrational spectra of the monolayer films of hexagonal boron nitride and graphite on faceted Ni(755). / Rokuta, E.; Hasegawa, Y.; Itoh, A.; Yamashita, K.; Tanaka, T.; Otani, S.; Oshima, C.
In: Surface Science, Vol. 427-428, 01.06.1999, p. 97-101.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Vibrational spectra of the monolayer films of hexagonal boron nitride and graphite on faceted Ni(755)
AU - Rokuta, E.
AU - Hasegawa, Y.
AU - Itoh, A.
AU - Yamashita, K.
AU - Tanaka, T.
AU - Otani, S.
AU - Oshima, C.
PY - 1999/6/1
Y1 - 1999/6/1
N2 - Hexagonal boron nitride (h-BN) and graphite films on faceted Ni(755) have been investigated by means of vibrational spectroscopy, accompanied by low energy electron diffraction and Auger electron spectroscopy. A faceted surface consisting of the (111) face and high-Miller index face has been grown by the adsorption of monolayer films. Vibrational spectra of the monolayer h-BN have exhibited two peaks at 90 and 97 meV, which originate from the optical phonons with out-of-plane displacement (TO⊥) of the films adsorbed on the faceted (111) and the other high-index faces, respectively. These peaks indicate that the bond strength between h-BN films and a Ni face depends on the Ni face orientation. On the contrary, only one peak of TO⊥ mode has appeared in the monolayer graphite on the same faceted surface. The single peak means a similar strength of the interfacial bond on various surfaces.
AB - Hexagonal boron nitride (h-BN) and graphite films on faceted Ni(755) have been investigated by means of vibrational spectroscopy, accompanied by low energy electron diffraction and Auger electron spectroscopy. A faceted surface consisting of the (111) face and high-Miller index face has been grown by the adsorption of monolayer films. Vibrational spectra of the monolayer h-BN have exhibited two peaks at 90 and 97 meV, which originate from the optical phonons with out-of-plane displacement (TO⊥) of the films adsorbed on the faceted (111) and the other high-index faces, respectively. These peaks indicate that the bond strength between h-BN films and a Ni face depends on the Ni face orientation. On the contrary, only one peak of TO⊥ mode has appeared in the monolayer graphite on the same faceted surface. The single peak means a similar strength of the interfacial bond on various surfaces.
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U2 - 10.1016/S0039-6028(99)00241-1
DO - 10.1016/S0039-6028(99)00241-1
M3 - Article
AN - SCOPUS:4243849780
VL - 427-428
SP - 97
EP - 101
JO - Surface Science
JF - Surface Science
SN - 0039-6028
ER -