Effective Mass Theory of Carbon Nanotubes with Vacancies in Magnetic Fields : Condensed Matter: Electronic Properties, etc.
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概要
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An effective-mass theory is developed on transport of non-doped carbon nanotubes with local and short-range impurities in the presence of a magnetic field. The conductance is shown to be scaled completely by the field component in the direction of impurities. In a weak-field regime, the conductance strongly depends on strength of potential and the difference in the number of impurities at A and B sublattices △N_<AB>. In a strong-field limit, the conductance is reduced to e^2/πh if impurities exist only on A or B sublattices and vanishes in all other cases. These results are intuitively understood by localized charge distribution of the wave function in magnetic fields.
- 社団法人日本物理学会の論文
- 2001-02-15
著者
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Nakanishi Takeshi
Department Of Applied And Bioapplied Chemistry Graduate School Of Engineering Osaka City University
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Igami Masatsura
Institute Of Materials Science University Of Tsukuba
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Tsuneya ANDO
Institute for Solid State Physics, University of Tokyo
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Tsuneya Ando
Institute For Solid State Physics University Of Tokyo
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Ando Tsuneya
Institute For Solic State Physics University Of Tokyo
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