Chirality dependence of the Raman cross section of carbon nanotubes
- 25 April 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 71 (15) , 153404
- https://doi.org/10.1103/physrevb.71.153404
Abstract
The chirality dependence for the cross section of Raman scattering from the radial breathing mode of carbon nanotubes observed in recent experiments [S. K. Doorn, D. A. Heller, P. W. Barone, M. L. Usrey, and M. S. Strano, Appl. Phys. A: Mater. Sci. Process. 78, 1147 (2004)] is explained using the empirical tight-binding method. It is shown that the transfer and overlap integrals usually neglected while accounting for the electron energy spectrum in carbon nanotubes play a crucial role in description of the exciton-phonon coupling.Keywords
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