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Journal Articles

Analysis of surface chemical reaction dynamics by using high brilliance and high energy-resolution synchrotron radiation

Teraoka, Yuden

Denki Gakkai Gijutsu Hokoku, (970), p.10 - 15, 2004/07

Si(001) surfaces are oxidized by O$$_{2}$$ molecules. The reaction schemes (oxide-layers formation, SiO desorption, their coexistence) are changed depending on the surface temperature and the gas pressure. The translational kinetic energy of incident O$$_{2}$$ molecules is recognizing to be an important parameter for controlling surface chemical reactions. The issues concerning translational kinetic energy induced oxidation by O$$_{2}$$ molecules at room temperature, effects of translational kinetic energy for SiO desorption processes at higher temperature than 1000 K, reaction mechanisms for coexistence of the SiO desorption and the oxide-layers formation in the temperature region from 900 K to 1000 K are reviewed.

Journal Articles

Chemical reaction dynamics in oxidation processes of Si(001) surface at high temperature

Teraoka, Yuden; Yoshigoe, Akitaka; Moritani, Kosuke

Shinku, 47(4), p.301 - 307, 2004/04

Recent research results on translational kinetic energy effects of incident oxygen molecules for Si(001) oxidation are summalized and introduced. The variation of surface temperature dependence of SiO desorption yield, oxygen uptake curves, and chemical bonding states depending on translational kinetic energy of oxygen molecules is described concretely. Eapecially, the translational kinetic energy effects on chemical reaction processes of concurrent oxide-layers formation and SiO desorption are discussed.

Journal Articles

Coexistence of passive and active oxidation for O$$_{2}$$/Si(001) system observed by SiO mass spectrometry and synchrotron radiation photoemission spectroscopy

Teraoka, Yuden; Moritani, Kosuke; Yoshigoe, Akitaka

Applied Surface Science, 216(1-4), p.8 - 14, 2003/06

 Times Cited Count:6 Percentile:35.59(Chemistry, Physical)

The experiments concerning the oxidation of Si(001) were performed at the surface reaction analysis apparatus, installed at the beamline BL23SU in the SPring-8. The SiO desorb remarkably at surface temperature of 1000 K. The desorption yield increased with increasing the incident energy of O$$_{2}$$. On the other hand, the desorption yield increased with decreasing the incident energy in the temperature region lower than 1000 K. Oxygen uptake curves observed by O-1s photoemission measurements corresponded to the SiO desorption features. These facts reveal that the passive oxidation coexists with the SiO desorption in the temperature region from 900 K to 1000 K.

Journal Articles

Control of O$$_{2}$$ adsorption and SiO desorption by incident energy of O$$_{2}$$ molecules in the O$$_{2}$$/Si(001) surface reaction system

Teraoka, Yuden; Yoshigoe, Akitaka; Moritani, Kosuke

Atomic Collision Research in Japan, No.29, p.68 - 70, 2003/00

There are two surface chemical reaction modes in the O$$_{2}$$/Si(001) system, that is, oxide-layers formation and SiO desorption. We have found that these reaction modes could be selected by changing translational kinetic energy of incident O$$_{2}$$ molecules.

Journal Articles

Exchange of tritium implanted into oxide ceramics for protium by exposure to air vapors at room temperature

Morita, Kenji*; Suzuki, Hironori*; Soda, Kazuo*; Iwahara, Hiroiku*; Nakamura, Hirofumi; Hayashi, Takumi; Nishi, Masataka

Journal of Nuclear Materials, 307-311(2), p.1461 - 1465, 2002/12

 Times Cited Count:2 Percentile:16.96(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Adsorption and desorption characteristics of silver on the borosilicate glass surface

Sato, Tadashi

Radiochimica Acta, 46, p.101 - 108, 1989/00

no abstracts in English

JAEA Reports

Data Compilation for Particle Impact Desorption

*; ; Ozawa, K.; *

JAERI-M 84-094, 174 Pages, 1984/05

JAERI-M-84-094.pdf:2.41MB

no abstracts in English

JAEA Reports

Data Compilation for Radiation Effects on Hydrogen Recycle in Fusion Reactor Materials

Ozawa, K.; *; *

JAERI-M 84-089, 139 Pages, 1984/05

JAERI-M-84-089.pdf:2.39MB

no abstracts in English

Journal Articles

Numerical model of radionuclide migration in geologic media

;

Journal of Nuclear Science and Technology, 20(6), p.503 - 510, 1983/00

 Times Cited Count:3 Percentile:44.31(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Discharge cleaning experiment in the JFT-2 tokamak with surface observation by AES

*; ;

J.Vac.Sci.Technol., 15(1), p.103 - 110, 1978/01

no abstracts in English

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