Electron Transport and Hot Phonons in Carbon Nanotubes

Michele Lazzeri; S. Piscanec; Francesco Mauri; Andrea C. Ferrari; John Robertson

doi:10.1103/physrevlett.95.236802

Abstract

We demonstrate the key role of phonon occupation in limiting the high-field ballistic transport in metallic carbon nanotubes. In particular, we provide a simple analytic formula for the electron transport scattering length, which we validate by accurate first principles calculations on (6, 6) and (11, 11) nanotubes. The comparison of our results with the scattering lengths fitted from experimental I-V curves indicates the presence of a nonequilibrium optical phonon heating induced by electron transport. We predict an effective temperature for optical phonons of thousands Kelvin.

Keywords

PhononCarbon nanotubeBallistic conduction in single-walled carbon nanotubesBallistic conductionScatteringCondensed matter physicsElectron transport chainNon-equilibrium thermodynamicsMaterials scienceLimitingElectronPhonon scatteringPhysicsOptical properties of carbon nanotubesNanotechnologyNanotubeOpticsQuantum mechanicsChemistry

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Publication Info

Year: 2005
Type: article
Volume: 95
Issue: 23
Pages: 236802-236802
Citations: 270
Access: Closed

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APA Style

                            
                                
                                    Michele Lazzeri, 
                                
                                    S. Piscanec, 
                                
                                    Francesco Mauri
                                
                                et al.
                            
                            (2005). 
                            Electron Transport and Hot Phonons in Carbon Nanotubes. 
                            Physical Review Letters
                            , 95
                            (23)
                            , 236802-236802.
                            https://doi.org/10.1103/physrevlett.95.236802
                        

Identifiers

DOI: 10.1103/physrevlett.95.236802