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Volumn 88, Issue 12, 2013, Pages

Electronic and optical gap renormalization in carbon nanotubes near a metallic surface

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EID: 84884898036     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.88.125412     Document Type: Article
Times cited : (31)

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    • I assume that the LDA wave functions of the CNT-metal system belong either to the CNT or to the metal, neglecting the possibility that states above the vacuum level can be delocalized over both systems. This approximation should introduce little error in the calculated properties of states localized on the CNT.
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    • Screening in the exchange term was also found to be appropriate in the computation of optical spectra in quantum dots when only a small set of particle-hole states are included in the calculation [see
    • Screening in the exchange term was also found to be appropriate in the computation of optical spectra in quantum dots when only a small set of particle-hole states are included in the calculation [see
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    • In metallic CNTs the free carriers screen out the added charge (the induced charge integrates to the negative of the added charge); this should result in QP renormalization much reduced in comparison to the semiconducting case.
    • In metallic CNTs the free carriers screen out the added charge (the induced charge integrates to the negative of the added charge); this should result in QP renormalization much reduced in comparison to the semiconducting case.
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    • c), where the nonanalytic function f (x) is within ∼ 10 % equal to 1 / (1 + x) for 0 < x < 1.


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