Dependence of the Second-order G0-band pro le on the electronic structure of Single-wall nanotubes
نویسندگان
چکیده
We analyze the dependence of the second-order G0-band pro le on their (n;m) indices by measuring the resonance Raman spectra of several semiconducting and metallic isolated tubes. We show that this pro le is very sensitive to the electronic structure, thus making it possible to get structural (n;m) information and to probe the splitting of the van Hove singularities in the electronic density of states arising from the trigonal warping e ect.
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تاریخ انتشار 2002