First-Principles Theory of Electronic States under Strong Field and Current and Its Application to Scanning Tunneling Microscopy
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概要
- 論文の詳細を見る
A method of the first-principles calculation of the electronic states under strong field and current is proposed, which is effective for bielectrode systems with atomic structure. A microscopic distribution of the field and current is calculated in a self-consistent way with the electron distribution in the surface region. The method is applied to the scanning tunneling microscope system around the contact region. The channel for the ballistic electron emission is opened in the tunnel barrier due to the proximity of the tip and surface, and is enlarged by the applied bias voltage. The force acting on the top surface atom by the tip is calculated, and the mechanism of atom extraction is clarified qualitatively.
- 社団法人応用物理学会の論文
- 1994-06-30
著者
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Hirose Kenji
Department Of Bacteriology National Institute Of Infectious Disease
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Tsukada Masaru
Department Of Physics Faculty Of Science University Of Tokyo
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Tsukada Masaru
Department Of Nano-science And Nano-technology Advanced School Of Science And Engineering Waseda Uni
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Hirose Kenji
Department Of Physics Faculty Of Science University Of Tokyo
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Tsukada Masaru
Department of Nano-Science and Nano-Engineering, Waseda University, 513 Waseda Tsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
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