Simplified method to prepare atomically-ordered TiO 2 (1 1 0)-(1 × 1) surfaces with steps and terraces

Ryota Shimizu, Katsuya Iwaya, Takeo Ohsawa, Tetsuya Hasegawa, Tomihiro Hashizume, Taro Hitosugi

    研究成果: Article査読

    4 被引用数 (Scopus)

    抄録

    An effective way to prepare atomically-ordered rutile TiO 2 (1 1 0) surfaces that have distinct step and terrace structures suitable for oxide thin film deposition is demonstrated. Only a two-step procedure, consisting of 20% HF etching and UHV-annealing at 1100 °C, was required to yield a clean (1 × 1) structure with step and terrace structures. Investigation of the surface using scanning tunneling microscopy, low-energy electron diffraction, and Auger electron spectroscopy reveals that carbon contamination is removed at around 800 °C, and straight steps with clear terraces appear at around 1000 °C.

    本文言語English
    ページ(範囲)4867-4869
    ページ数3
    ジャーナルApplied Surface Science
    257
    11
    DOI
    出版ステータスPublished - 2011 3月 15

    ASJC Scopus subject areas

    • 化学 (全般)
    • 凝縮系物理学
    • 物理学および天文学(全般)
    • 表面および界面
    • 表面、皮膜および薄膜

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