---
_id: '15864'
abstract:
- lang: eng
  text: Starting from the extended Su-Schrieffer-Heeger model, multiband semiconductor
    Bloch equations are formulated in momentum space and applied to the analysis of
    the linear optical response of semiconducting carbon nanotubes (SCNTs). This formalism
    includes the coupling of electron-hole pair excitations between different valence
    and conduction bands, originating from the electron-hole Coulomb attraction. The
    influence of these couplings, which are referred to as nondiagonal interband Coulomb
    interaction (NDI-CI), on the linear excitonic absorption spectra is investigated
    and discussed for light fields polarized parallel to the tube direction. The results
    show that the intervalley NDI-CI leads to a significant increase of the band gap
    and a decrease of the exciton binding energy that results in a blueshift of the
    lowest-frequency excitonic absorption peak. The strength of these effects depends
    on the symmetry of the SCNT. Furthermore, for zigzag SCNTs with higher symmetry
    other nonintervalley NDI-CI terms also affect the spectral positions of excitonic
    absorption peaks.
article_number: '155407'
author:
- first_name: Hong
  full_name: Liu, Hong
  last_name: Liu
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: Liu H, Schumacher S, Meier T. Influence of Coulomb-induced band couplings on
    linear excitonic absorption spectra of semiconducting carbon nanotubes. <i>Physical
    Review B</i>. 2014;89(15). doi:<a href="https://doi.org/10.1103/physrevb.89.155407">10.1103/physrevb.89.155407</a>
  apa: Liu, H., Schumacher, S., &#38; Meier, T. (2014). Influence of Coulomb-induced
    band couplings on linear excitonic absorption spectra of semiconducting carbon
    nanotubes. <i>Physical Review B</i>, <i>89</i>(15), Article 155407. <a href="https://doi.org/10.1103/physrevb.89.155407">https://doi.org/10.1103/physrevb.89.155407</a>
  bibtex: '@article{Liu_Schumacher_Meier_2014, title={Influence of Coulomb-induced
    band couplings on linear excitonic absorption spectra of semiconducting carbon
    nanotubes}, volume={89}, DOI={<a href="https://doi.org/10.1103/physrevb.89.155407">10.1103/physrevb.89.155407</a>},
    number={15155407}, journal={Physical Review B}, author={Liu, Hong and Schumacher,
    Stefan and Meier, Torsten}, year={2014} }'
  chicago: Liu, Hong, Stefan Schumacher, and Torsten Meier. “Influence of Coulomb-Induced
    Band Couplings on Linear Excitonic Absorption Spectra of Semiconducting Carbon
    Nanotubes.” <i>Physical Review B</i> 89, no. 15 (2014). <a href="https://doi.org/10.1103/physrevb.89.155407">https://doi.org/10.1103/physrevb.89.155407</a>.
  ieee: 'H. Liu, S. Schumacher, and T. Meier, “Influence of Coulomb-induced band couplings
    on linear excitonic absorption spectra of semiconducting carbon nanotubes,” <i>Physical
    Review B</i>, vol. 89, no. 15, Art. no. 155407, 2014, doi: <a href="https://doi.org/10.1103/physrevb.89.155407">10.1103/physrevb.89.155407</a>.'
  mla: Liu, Hong, et al. “Influence of Coulomb-Induced Band Couplings on Linear Excitonic
    Absorption Spectra of Semiconducting Carbon Nanotubes.” <i>Physical Review B</i>,
    vol. 89, no. 15, 155407, 2014, doi:<a href="https://doi.org/10.1103/physrevb.89.155407">10.1103/physrevb.89.155407</a>.
  short: H. Liu, S. Schumacher, T. Meier, Physical Review B 89 (2014).
date_created: 2020-02-10T11:55:39Z
date_updated: 2025-12-05T14:51:59Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '297'
- _id: '230'
- _id: '35'
doi: 10.1103/physrevb.89.155407
intvolume: '        89'
issue: '15'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
  issn:
  - 1098-0121
  - 1550-235X
publication_status: published
status: public
title: Influence of Coulomb-induced band couplings on linear excitonic absorption
  spectra of semiconducting carbon nanotubes
type: journal_article
user_id: '16199'
volume: 89
year: '2014'
...