Resonant Raman Scattering of Interacting Two-Channel Quantum Wires

Details Resonant Raman Scattering of Interacting Two-Channel Quantum Wires Resonant Raman Scattering of Interacting Two-Channel Quantum Wires

2001-06-18

arxiv.org/abs/cond-mat/0106336v1

Int. Journ. Mod. Phys. B, Vol. 15, 3031-3038 (2001).

Physics

Condensed Matter

Strongly Correlated Electrons

Revtex File, no figures. To appear in International Journal of Modern Physics B

Scientific paper

10.1142/S0217979201007221

Resonant Raman scattering of degenerate interacting two-channel quantum wire is studied. {\it All} collective excitations of two-channel quantum wire are shown to give rise to peaks in the polarized Raman spectra near resonance. If there exist certain symmetries among interactions, a resonant peak can also appear in the {\it depolarized} Raman spectra, in constrast to the single-channel case studied by Sassetti and Kramer. We also calculate the explicit form of the scattering cross-section away from the peaks. The above features may be experimentally verified in armchair carbon nanotube systems.

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