e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
ISSN-L : 1348-0391
Conference -ISSS-4-
Order-disorder phase transition of Sn/Ge(111) surface studied by reflection high-energy positron diffraction
Y. FukayaA. KawasusoA. Ichimiya
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2006 Volume 4 Pages 435-438

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Abstract

We investigated the phase transition from a 3 × 3 to √3 × √3 structure on the Sn/Ge(111) surface at 220 K using a reflection high-energy positron diffraction. We measured the rocking curves at 110 K and 293 K under the one-beam condition and along the [11-2] and [10-1] directions. There are no significant changes in the rocking curves at any conditions according to the phase transition. The curves at both temperatures can be explained by ’one-up and two-down’ model for Sn atoms. The result clearly indicates the order-disorder phase transition. [DOI: 10.1380/ejssnt.2006.435]

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この記事はクリエイティブ・コモンズ [表示 4.0 国際]ライセンスの下に提供されています。
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