Competitive Surfache Growt of Carbon Nanowires and Graphite (0001) Terraces on a C-doped Ni(111) Substratex

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  • 炭素固溶Ｎｉ（１１１）上におけるグラファイト（０００１）テラスとカーボンナノワイヤの競合成長｀†´
  • 炭素固溶Ni(111)上におけるグラファイト(0001)テラスとカーボンナノワイヤの競合成長
  • タンソコヨウ Ni 111 ウエ ニ オケル グラファイト 0001 テラス ト カーボンナノワイヤ ノ キョウゴウ セイチョウ

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Description

Carbon nanowires and flat single-crystal graphite (0001) terraces have been competitively formed on a carbon-doped Ni(111) substrate, for the first time, only by a heat treatment in ultrahigh vacuum. The growth mechanism is interpreted in terms of a bulk-to-surface precipitation process of internal carbon atoms that were doped in a high-purity Ni(111) substrate in advance. The observed carbon nanowires are single wires or bundles. Nanometer-scale morphology and chemical properties of the wires have been clarified by low-energy electron diffraction, Auger electron spectroscopy and scanning tunneling microscopy (STM). A simple manipulation technique of a single carbon nanowire is demonstrated by STM.

Journal

  • Hyomen Kagaku

    Hyomen Kagaku 24 (9), 531-537, 2003

    The Surface Science Society of Japan

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