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Control of electron- and phonon-derived thermal conductances in carbon nanotubes.
- Source :
-
New Journal of Physics . Aug2007, Vol. 9 Issue 8, p1-11. 11p. 1 Diagram, 5 Graphs. - Publication Year :
- 2007
-
Abstract
- We present a method for controlling the electron- and phononderived thermal conductances in carbon nanotubes with vacancy defects involving numerical analysis based on the nonequilibrium electron/phonon Green's function method. The electron-derived thermal conductance can be controlled by tuning the external gate voltage because the resonant backscattering level (dangling σ-bond states around vacancies) can be shifted by the gate voltage. In contrast, thermal annealing is effective in increasing the phonon-derived thermal conductance because the quasi-bound phonon state localized around a vacancy disappears due to the annealing-induced vacancy rearrangement. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13672630
- Volume :
- 9
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- New Journal of Physics
- Publication Type :
- Academic Journal
- Accession number :
- 42323633
- Full Text :
- https://doi.org/10.1088/1367-2630/9/8/245