Corrigendum to "Real time observation of oxygen chemisorption states on Si(001)-21 during supersonic oxygen molecular beam irradiation"

Teraoka, Yuden; Yoshigoe, Akitaka

Applied Surface Science, 346, P. 580, 2015/08

https://doi.org/10.1016/j.apsusc.2015.02.145

Corrigendum to "Coexistence of passive and active oxidation for O/Si(001) system observed by SiO mass spectrometry and synchrotron radiation photoemission spectroscopy"

Teraoka, Yuden; Moritani, Kosuke*; Yoshigoe, Akitaka

Applied Surface Science, 343, P. 213, 2015/07

https://doi.org/10.1016/j.apsusc.2015.02.147

Comparative study of oxidation on Cu and CuAu surfaces with a hyperthermal O molecular beam

Okada, Michio*; Moritani, Kosuke; Fukuyama, Tetsuya*; Mizutani, Hironori*; Yoshigoe, Akitaka; Teraoka, Yuden; Kasai, Toshio*

Surface Science, 600(18), p.4228 - 4232, 2006/09

https://doi.org/10.1016/j.susc.2006.01.149

Dissociative adsorption of hyperthermal O molecules on CuAu(100) was investigated by X-ray photoemission spectroscopy in conjunction with a synchrotron light source. Comparing the O-uptake curve on CuAu with that on Cu, it was found that the dissociative adsorption of O is more activated (less reactive) due to Au alloying. The low-energy electron-diffraction (LEED) pattern of c(22) for the clean surface turned into the (11) LEED pattern during the oxidation by hyperthermal O molecular beam, suggesting that the O adsorption induces the Cu-atom segregation on the surface.

Manufacture of high-speed neutral atomic and molecular beam apparatus and its characterization

Hachiue, Shunsuke; Teraoka, Yuden

JAERI-Tech 2004-066, 69 Pages, 2004/11

JAERI-Tech-2004-066.pdf:7.44MB

In order to progress chemical reaction studies at verious material surfaces using high speed and reactive ions and neutral particles beams, a high-speed neutral atomic and molecular beam apparatus has been developed. In this report, details of the apparatus and characteristics of actually-generated oxygen atomic and molecular ion/neutral beams are discribed. This apparatus is a ultra-high vacuum system consisting of a plasma ion source, electrostatic lens systems, a mass separator, and a charge transfer chamber. Total oxygen ion currents of 52 microamps at accerelation energy of 8 keV and 17 microamps even at 20 eV were obtained. Mass separation was also good so that an oxygen molecular ion beam of 11 microamps and an oxygen atomic ion beam of 5.5 microamps were obtained even at 20 eV. A neutral oxygen atomic or molecular beam was also generated with the flux density of 10 particles/cm/s.