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Time-dependent wave-packet approach to the quantum transport of carbon nanotubes with vacancies
Authors:Hiroyuki Ishii  Nobuhiko Kobayashi  Kenji Hirose
Affiliation:a CREST, Japan Science and Technology (JST) Agency, Japan
b Institute of Applied Physics, University of Tsukuba 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-9573, Japan
c Fundamental and Environmental Research Laboratories, NEC Corporation, 34 Miyukigaoka, Tsukuba, Ibaraki 305-8501, Japan
Abstract:
We investigate the vacancy effect on the electronic transport properties of the (5,5)-metallic and (5,0)-semiconducting carbon nanotubes using the time-dependent wave-packet approach based on the Kubo-Greenwood formula within the tight-binding approximation. We found that the metallic and semiconducting carbon nanotubes show different electronic transport properties for the states created by vacancies.
Keywords:Quantum transport   Carbon nanotubes   Time-dependent approach
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