Field ion-scanning tunneling microscope investigation of sodium adsorption on the GaAs(110) 1 X 1 surface

C. Bai, T. Hashizume, D. Jeon, T. Sakurai

    研究成果: Article査読

    4 被引用数 (Scopus)

    抄録

    A field ion-scanning tunneling microscope has been employed to study the geometry and the coverage-dependent growth structures formed by Na deposition on the GaAs(110) surface at room temperature. Our data showed that at the early absorption stage Na adatoms reside on bridge sites encompassing one Ga and two surface atoms to form linear chains along the [110] direction. The Na-Na nearest-neighbor distance in this low density chain structure is 8 Å. At slightly increased coverage, a local 2 X 2 structure was observed. In contrast to the Cs/GaAs(110) surface, neither a two-dimensional ordered structure nor low-density zigzag chains were observed. Additional Na adsorption resulted in the formation of three-dimensional disordered clusters.

    本文言語English
    ページ(範囲)252-256
    ページ数5
    ジャーナルApplied Surface Science
    67
    1-4
    DOI
    出版ステータスPublished - 1993 4月 2

    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

    フィンガープリント

    「Field ion-scanning tunneling microscope investigation of sodium adsorption on the GaAs(110) 1 X 1 surface」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル