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Transformation of iridium(110) (1×1) into (1×2) and spatial distribution of reactive carbon dioxide desorption

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タイトル: Transformation of iridium(110) (1×1) into (1×2) and spatial distribution of reactive carbon dioxide desorption
著者: Matsushima, Tatsuo 著作を一覧する
Ohno, Yuichi 著作を一覧する
Nagai, Kiyoshi 著作を一覧する
発行日: 1991年 1月 1日
出版者: American Institute of Physics
誌名: The Journal of Chemical Physics
巻: 94
号: 1
開始ページ: 704
終了ページ: 710
出版社 DOI: 10.1063/1.460338
抄録: The spatial distribution of the desorption flux of CO2 produced on Ir(110) (1x—1) and (1x—2) surfaces was studied by means of angle-resolved thermal desorption and low-energy electron diffraction. The distribution is collimated along the bulk surface normal on (1x1). It is sharp in the [001] direction and sharper in the [11-bar 0] direction. This distribution is consistent with the model that the reactive desorption occurs on a short bridge site. On (1x2) surfaces, two-directional desorption was observed, which was collimated along the axis at the polar angle of 26 deg in both [001] and [001-bar] directions. The distribution in the [11-bar 0] direction is collimated along the bulk surface normal. The reactive desorption was suggested to take place on a threefold hollow site on the declining terrace. The spatial distribution changed from the (1x—1) type to the (1x—2) type during the transformation of the surface structure. This structure change was confirmed by low-energy electron diffraction.
Rights: Copyright (c) 1991 American Institute of Physics
Relation (URI): http://www.aip.org/
資料タイプ: article
URI: http://hdl.handle.net/2115/11326
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 松島 龍夫

 

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