Energetics and electronic properties of twisted single-walled carbon nanotubes

Koichiro Kato, Takashi Koretsune, Susumu Saito

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)

抄録

We perform a systematic first-principles study of energetics and electronic properties of chiral carbon nanotubes (CNTs) in the density-functional theory. It is found that chiral CNTs possess slightly twisted ground-state geometries. Moderate-diameter CNTs show twisting-dependent electronic properties well classified by their chiral indices, while the electronic structures of small-diameter CNTs possess sizable but individually different twisting dependences, leading to metal-semiconductor transitions in some CNTs. The CNT having the widest fundamental gap is predicted to be the twisted (4,3) CNT.

本文言語英語
論文番号115448
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
85
11
DOI
出版ステータス出版済み - 3月 29 2012
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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