Ab Initio Study of Carbon Nanotubes in Electric Fields
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概要
- 論文の詳細を見る
Electronic structures of four types of carbon nanotubes in an electric field have been investigated by the ab initio pseudopotential plane wave method. The local field enhancement at the tips of nanotubes and the screening of the electric field inside the nanotubes are considerable for nanotubes with a small gap between the highest occupied band (HOB) and the lowest unoccupied band (LUB) in the electronic states. The dangling bond (DB) states near the HOB localized at the edge of nanotubes are significantly influenced by the electric field. Thus, the present results strongly suggest an important role of the localized states of conducting nanotubes with small electronic gaps in field emissions.
- 社団法人応用物理学会の論文
- 2000-01-15
著者
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Watanabe Kazuyuki
Department of Physics, Faculty of Science, Science University of Tokyo
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Watanabe Kazuyuki
Department Of Physics Tokyo University Of Science:crest Japan Science And Technology Agency
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Tada Kazuhiro
Department Of Physics Faculty Of Science Science University Of Tokyo
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Tada Kazuhiro
Department Of Engineering Sciences Nagoya Institute Of Technology:nippon Electric Co. Ltd.
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Watanabe Kazuyuki
Department Of Physics Faculty Of Science Science University Of Tokyo:frontier Research Center For Co
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Watanabe Kazuyuki
Department Of Orthopaedic Surgery Fukushima Medical University School Of Medicine
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Tada Kazuhiro
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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Watanabe Kazuyuki
Department of Atomic Science and Nuclear Engineering, Faculty of Engineering, Hokkaido University
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