Structures and electronic properties of small carbon nanotube tori
SCIE
SCOPUS
- Title
- Structures and electronic properties of small carbon nanotube tori
- Authors
- Oh, DH; Park, JM; Kim, KS
- Date Issued
- 2000-07-15
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- Fullerenes and nanotubes are promising candidates in the development of nanodevices. Recently, a form of carbon nanotube torus structures has been observed. In this regard, we have investigated the geometries, electronic structures, and energetics of small carbon nanotube tori, using both the tight-binding and semiempirical quantum chemical approaches. It is shown that D-5d nanotube tori behave like semiconductors, while D-6h nanotube tori exhibit metal (or metal-like) characteristics similar to bent nanotubes. We show that the D-5d nanotube tori, which are as stable as the corresponding fullerenes, are energetically more favored than the corresponding nanotubes. In particular, the pentagons of the D-5d nanotube tori are less deformed than those of bent nanotubes and D-6h nanotube tori. This indicates that such small nanotube tori could be observed under optimal kinetic-driven conditions and eventually utilized as nanodevices.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12045
- DOI
- 10.1103/PhysRevB.62.1600
- ISSN
- 0163-1829
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 62, no. 3, page. 1600 - 1603, 2000-07-15
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