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자료유형
학술저널
저자정보
Taira, Hisao (Division of Engineering and Policy for Sustainable Environment, Faculty of Engineering, Hokkaido University) Shima, Hiroyuki (Department of Environmental Sciences & Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi) Umeno, Yoshitaka (Institute of Industrial Science, The University of Tokyo) Sato, Motohiro (Division of Engineering and Policy for Sustainable Environment, Faculty of Engineering, Hokkaido University)
저널정보
테크노프레스 Coupled systems mechanics Coupled systems mechanics 제2권 제2호
발행연도
2013.1
수록면
147 - 157 (11page)

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We numerically investigate the electronic band structure of carbon nanotubes (CNTs) under radial corrugation. Hydrostatic pressure application to CNTs leads to a circumferential wave-like deformation of their initially circular cross-sections, called radial corrugations. Tight-binding calculation was performed to determine the band gap energy as a function of the amplitude of the radial corrugation. We found that the band gap increased with increasing radial corrugation amplitude; then, the gap started to decline at a critical amplitude and finally vanished. This non-monotonic gap variation indicated the metal-semiconductor-metal transition of CNTs with increasing corrugation amplitude. Our results provide a better insight into the structure-property relation of CNTs, thus advancing the CNT-based device development.

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