GaAs表面再構成構造のトリメチルガリウムの表面反応

書誌事項

タイトル別名
  • Trimethylgallium Surface Reaction as a Function of GaAs Reconstructed Structure.
  • GaAs ヒョウメン サイ コウセイ コウゾウ ト トリメチル ガリウム ノ

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抄録

The surface reaction of trimethylgallium (TMG) is discussed as a function of relaxed or reconstructed GaAs surface structure on the basis of pulsed molecular beam scatterings from stoichiometry controlled GaAs(100), (110) and (111)B surfaces. The results are interpreted within the framework of the precursor-mediated adsorption mechanism, where TMG surface reaction is determined by the depth of the precursor state and the stability of the surface structure. It is believed that the precursor state is deepened by the electrostatic behavior in the GaAs surface structure. The topmost As atoms which have only bonds to As atoms hinder TMG trapping in the precursor state; implying the mechanism of the growth suppression on the (2×2)-reconstructed (111)B surface and the As-passivation technique.

収録刊行物

  • 表面科学

    表面科学 18 (12), 796-802, 1997

    公益社団法人 日本表面科学会

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