Article: Observation of exciton-phonon sideband in individual metallic single-walled carbon nanotubes

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TitleObservation of exciton-phonon sideband in individual metallic single-walled carbon nanotubes
AuthorsZeng, H1
Zhao, H1
Zhang, FC1
Cui, X1
KeywordsBackscattering reflections
Chiral indices
Coulomb screenings
Dielectric constants
Electron phonons
Issue Date2009
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
CitationPhysical Review Letters, 2009, v. 102 n. 13 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevLett.102.136406
AbstractSingle-walled carbon nanotubes (SWCNTs) are quasi-one-dimensional systems with poor Coulomb screening and enhanced electron-phonon interaction, and are good candidates for excitons and exciton-phonon couplings in metallic state. Here we report backscattering reflection experiments on individual metallic SWCNTs. An exciton-phonon sideband separated by 0.19 eV from the first optical transition peak is observed in a metallic SWCNT of chiral index (13,10), which provides clear evidences of excitons in metallic SWCNTs. A static dielectric constant of 10 is estimated from the reflectance spectrum. © 2009 The American Physical Society.
ISSN0031-9007
2011 Impact Factor: 7.37
2011 SCImago Journal Rankings: 0.633
DOIhttp://dx.doi.org/10.1103/PhysRevLett.102.136406
ISI Accession Number IDWOS:000264888600047
Funding AgencyGrant Number
Hong Kong GRFHKU701907P
HKU706707P
Funding Information:

This work is supported by Hong Kong GRF Grants No. HKU701907P and No. HKU706707P. Computational resource from HKU's HPC Facilities is acknowledged.

ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorZeng, H
dc.contributor.authorZhao, H
dc.contributor.authorZhang, FC
dc.contributor.authorCui, X
dc.date.accessioned2010-05-31T03:53:59Z
dc.date.available2010-05-31T03:53:59Z
dc.date.issued2009
dc.description.abstractSingle-walled carbon nanotubes (SWCNTs) are quasi-one-dimensional systems with poor Coulomb screening and enhanced electron-phonon interaction, and are good candidates for excitons and exciton-phonon couplings in metallic state. Here we report backscattering reflection experiments on individual metallic SWCNTs. An exciton-phonon sideband separated by 0.19 eV from the first optical transition peak is observed in a metallic SWCNT of chiral index (13,10), which provides clear evidences of excitons in metallic SWCNTs. A static dielectric constant of 10 is estimated from the reflectance spectrum. © 2009 The American Physical Society.
dc.description.naturepublished_or_final_version
dc.identifier.citationPhysical Review Letters, 2009, v. 102 n. 13 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevLett.102.136406
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.102.136406
dc.identifier.hkuros161491
dc.identifier.isiWOS:000264888600047
Funding AgencyGrant Number
Hong Kong GRFHKU701907P
HKU706707P
Funding Information:

This work is supported by Hong Kong GRF Grants No. HKU701907P and No. HKU706707P. Computational resource from HKU's HPC Facilities is acknowledged.

dc.identifier.issn0031-9007
2011 Impact Factor: 7.37
2011 SCImago Journal Rankings: 0.633
dc.identifier.issue13
dc.identifier.openurl
dc.identifier.pmid19392381
dc.identifier.scopuseid_2-s2.0-64649107238
dc.identifier.urihttp://hdl.handle.net/10722/59622
dc.identifier.volume102
dc.languageeng
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
dc.publisher.placeUnited States
dc.relation.ispartofPhysical Review Letters
dc.relation.referencesReferences in Scopus
dc.rightsPhysical Review Letters. Copyright © American Physical Society.
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
dc.subjectBackscattering reflections
dc.subjectChiral indices
dc.subjectCoulomb screenings
dc.subjectDielectric constants
dc.subjectElectron phonons
dc.titleObservation of exciton-phonon sideband in individual metallic single-walled carbon nanotubes
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong