Quantum conductance of multiwall carbon nanotubesopen access
- Authors
- Yoon, Young-Gui; Delaney, Paul; Louie, Steven G.
- Issue Date
- Aug-2002
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW B, v.66, no.7
- Journal Title
- PHYSICAL REVIEW B
- Volume
- 66
- Number
- 7
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/56814
- DOI
- 10.1103/PhysRevB.66.073407
- ISSN
- 2469-9950
2469-9969
- Abstract
- An analysis on the conductance of multiwall carbon nanotubes (MWNT's) is presented. Recent experiment indicated that MWNT's are good quantum conductors. Our theory shows that tunneling current between states on different walls of a defect-free, infinitely long MWNT is vanishingly small in general, which leads to the quantization of the conductance of the MWNT's. With a reasonable simple model, we explicitly show that the conductance of a capped MWNT can be determined by the outermost wall for an infinitely long nanotube. We apply the theory to finite MWNT's and estimate the generic interwall conductance to be negligible compared to the intrawall ballistic conductance.
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- Appears in
Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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