Temperature and Gas-Environment Dependent Electron and Phonon Transport in Suspended Carbon Nanotubes Up to Electrical Breakdown

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dc.creatorMann, David
dc.creatorPop, Eric
dc.creatorCao, Jien
dc.creatorWang, Qian
dc.creatorGoodson, Kenneth
dc.creatorDai, Hongjie
dc.date2005-07-20
dc.date.accessioned2026-07-07T03:06:03Z
dc.date.available2026-07-07T03:06:03Z
dc.descriptionHigh bias electrical transport characteristics of freely suspended metallic single-walled carbon nanotubes (SWNTs) are investigated at 250-400K in vacuum and various gases. Self-heating is exploited to examine the temperature dependence of phonon transport and optical phonon decay in SWNTs. The acoustic phonon thermal conductivity of a SWNT follows ~1/T at high temperatures. Non-equilibrium optical phonon effects in suspended nanotubes decrease as the ambient temperature increases. Gas molecules assist the relaxation of hot optical phonons along the tube length and enable enhanced current flow. In vacuum, high bias breakdown of suspended SWNTs can occur via melting caused by electrically emitted hot optical phonons at a low acoustic phonon temperature.
dc.description13 pages, 4 figures submitted to Physical Review Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0507468
dc.identifierhttp://arxiv.org/abs/cond-mat/0507468
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26670
dc.subjectMesoscale and Nanoscale Physics
dc.titleTemperature and Gas-Environment Dependent Electron and Phonon Transport in Suspended Carbon Nanotubes Up to Electrical Breakdown
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