Transport in a metallic nanotube at finite temperature
| Title | Transport in a metallic nanotube at finite temperature |
| Publication Type | Journal Article |
| Year of Publication | 2009 |
| Authors | Ren W, Wang CZ, Ho KM, Chan CT |
| Journal Title | Physical Review B |
| Volume | 79 |
| Pages | 161404 |
| Date Published | 04/01 |
| ISBN Number | 1098-0121 |
| Accession Number | ISI:000265945200017 |
| Keywords | ', ballistic transport, carbon nanotubes, conductance, fermi level, fluctuations, green, model, molecular dynamics method, molecular-dynamics, phonons, s function methods, silicon, tight-binding calculations, walled carbon nanotubes |
| Abstract | We consider the effect of thermal phonon displacements on the coherent transport in carbon nanotubes. The atomic displacements are generated using tight-binding molecular dynamics simulations, and the conductances are computed using a nonequilibrium Green's function technique. Atomic displacements due to lattice vibrations lead to different levels of conductance reduction and fluctuation on the massive and massless bands of a metallic nanotube. Different conduction regimes are studied by examining the resistance on different length scales. The temperature-induced displacements have a significant impact on the ballistic or diffusive transport in carbon nanotube. |
| URL | <Go to ISI>://000265945200017 |
| DOI | 10.1103/Physrevb.79.161404 |
