Theory of Rayleigh scattering from metallic carbon nanotubes

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Malic E, Hirtschulz M, Milde F, Wu Y, Maultzsch J, Heinz TF, Knorr A, Reich S
Zeitschrift: Physical Review B
Verlag: AMER PHYSICAL SOC
Jahr der Veröffentlichung: 2008
Band: 77
Heftnummer: 4
ISSN: 1098-0121


Abstract


We present a microscopic calculation of the Rayleigh (elastic light) scattering spectra for single-walled carbon nanotubes. Combining density-matrix formalism and the tight-binding model, we obtain results for nanotubes of arbitrary chiral index. In agreement with experiment, the calculated Rayleigh spectra of metallic nanotubes show a double-peaked structure resulting from the trigonal warping effect, with the low-energy feature exhibiting greater intensity. We explain the intensity ratios by the wave-vector dependence of the optical matrix elements. Also in accord with experiment, the Rayleigh line shape of each peak is asymmetric, with an enhanced cross section for lower photon energies. This behavior arises from contributions of the nonresonant optical susceptibility to the Rayleigh scattering process.



FAU-Autoren / FAU-Herausgeber

Maultzsch, Janina Prof. Dr.
Lehrstuhl für Experimentalphysik


Autor(en) der externen Einrichtung(en)
Columbia University
Freie Universität Berlin
Technische Universität Berlin


Zitierweisen

APA:
Malic, E., Hirtschulz, M., Milde, F., Wu, Y., Maultzsch, J., Heinz, T.F.,... Reich, S. (2008). Theory of Rayleigh scattering from metallic carbon nanotubes. Physical Review B, 77(4). https://dx.doi.org/10.1103/PhysRevB.77.045432

MLA:
Malic, Ermin, et al. "Theory of Rayleigh scattering from metallic carbon nanotubes." Physical Review B 77.4 (2008).

BibTeX: 

Zuletzt aktualisiert 2018-07-08 um 16:23