PHONON DISPERSION IN CHIRAL SINGLE-WALL CARBON NANOTUBES

Phonon Dispersion in Chiral Single-wall Carbon Nanotubes

The method to obtain phonon dispersion of achiral single-wall carbon nanotubes (SWNTs) from 6× 6 matrix proposed by Mahan and Jeon has been extended to chiral SWNTs. The number of calculated phonon modes of a chiral SWNT (10, 1) is much larger than that of a zigzag one (10, 0) because the number of atoms in the translational unit cell of chiral SWNT is larger than that of an achiral one even th...

Phonon-induced dephasing in single-wall carbon nanotubes

Phonon-assisted tunneling in interacting suspended single wall carbon nanotubes

Transport in suspended metallic single wall carbon nanotubes in the presence of strong electron-electron interaction is investigated. We consider a tube of finite length and discuss the effects of the coupling of the electrons to the deformation potential associated to the acoustic stretching and breathing modes. Treating the interacting electrons within the framework of the Luttinger liquid mo...

Electron-phonon matrix elements in single-wall carbon nanotubes

J. Jiang,1 R. Saito,1 Ge. G. Samsonidze,2 S. G. Chou,3 A. Jorio,6 G. Dresselhaus,5 and M. S. Dresselhaus2,4 1Department of Physics, Tohoku University and CREST, JST, Sendai, 980-8578, Japan 2Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA 3Department of Chemistry, Massachusetts Institute of Technology, Cambrid...

Quantized phonon spectrum of single-wall carbon nanotubes

The electronic spectra of carbon nanotubes and other nanoscale systems are quantized because of their small radii. Similar quantization in the phonon spectra has been difficult to observe because of the far smaller energy scale. We probed this regime by measuring the temperature-dependent specific heat of purified single-wall nanotubes. The data show direct evidence of one-dimensional quantized...