Abstract
The molecular orientation of NO and N 2O during adsorption on Ir(111) is observed by combining the wavelength-dispersive x-ray absorption spectroscopy with 1 Hz switching between the vertical and horizontal linear polarizations. It is revealed that NO adsorbs keeping its molecular axis at ∼ 20 ° from surface normal. In contrast, N 2O rapidly adsorbs up to 2/3 of the saturation coverage with an orientation angle of ∼ 35°, then turns to a slow adsorption phase with larger orientation angles, and gradually reaches its saturation with an average orientation angle of ∼ 45 °. Such a complicated behavior is interpreted by assuming different adsorption sites.
| Original language | English |
|---|---|
| Article number | 161601 |
| Journal | Applied Physics Letters |
| Volume | 101 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2012 Oct 15 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Molecular orientation change during adsorption of NO and N 2O on Ir(111) observed by real-time wavelength-dispersive x-ray absorption spectroscopy with polarization switching. / Amemiya, Kenta; Sakamaki, Masako; Nakamoto, Shuichi; Yoshida, Masaaki; Suzuki, Kazuma; Kondoh, Hiroshi; Koide, Tsuneharu; Ito, Kenji; Tsuchiya, Kimichika; Harada, Kentaro; Sasaki, Hiroyuki; Aoto, Tomohiro; Shioya, Tatsuro; Obina, Takashi; Yamamoto, Shigeru; Kobayashi, Yukinori.
In: Applied Physics Letters, Vol. 101, No. 16, 161601, 15.10.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Molecular orientation change during adsorption of NO and N 2O on Ir(111) observed by real-time wavelength-dispersive x-ray absorption spectroscopy with polarization switching
AU - Amemiya, Kenta
AU - Sakamaki, Masako
AU - Nakamoto, Shuichi
AU - Yoshida, Masaaki
AU - Suzuki, Kazuma
AU - Kondoh, Hiroshi
AU - Koide, Tsuneharu
AU - Ito, Kenji
AU - Tsuchiya, Kimichika
AU - Harada, Kentaro
AU - Sasaki, Hiroyuki
AU - Aoto, Tomohiro
AU - Shioya, Tatsuro
AU - Obina, Takashi
AU - Yamamoto, Shigeru
AU - Kobayashi, Yukinori
PY - 2012/10/15
Y1 - 2012/10/15
N2 - The molecular orientation of NO and N 2O during adsorption on Ir(111) is observed by combining the wavelength-dispersive x-ray absorption spectroscopy with 1 Hz switching between the vertical and horizontal linear polarizations. It is revealed that NO adsorbs keeping its molecular axis at ∼ 20 ° from surface normal. In contrast, N 2O rapidly adsorbs up to 2/3 of the saturation coverage with an orientation angle of ∼ 35°, then turns to a slow adsorption phase with larger orientation angles, and gradually reaches its saturation with an average orientation angle of ∼ 45 °. Such a complicated behavior is interpreted by assuming different adsorption sites.
AB - The molecular orientation of NO and N 2O during adsorption on Ir(111) is observed by combining the wavelength-dispersive x-ray absorption spectroscopy with 1 Hz switching between the vertical and horizontal linear polarizations. It is revealed that NO adsorbs keeping its molecular axis at ∼ 20 ° from surface normal. In contrast, N 2O rapidly adsorbs up to 2/3 of the saturation coverage with an orientation angle of ∼ 35°, then turns to a slow adsorption phase with larger orientation angles, and gradually reaches its saturation with an average orientation angle of ∼ 45 °. Such a complicated behavior is interpreted by assuming different adsorption sites.
UR - http://www.scopus.com/inward/record.url?scp=84867803400&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84867803400&partnerID=8YFLogxK
U2 - 10.1063/1.4759114
DO - 10.1063/1.4759114
M3 - Article
AN - SCOPUS:84867803400
VL - 101
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 16
M1 - 161601
ER -