Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevB.73.245414
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dc.titleRaman characteristic peaks induced by the topological defects of carbon nanotube intramolecular junctions
dc.contributor.authorWu, G.
dc.contributor.authorDong, J.
dc.date.accessioned2014-10-16T09:38:39Z
dc.date.available2014-10-16T09:38:39Z
dc.date.issued2006
dc.identifier.citationWu, G., Dong, J. (2006). Raman characteristic peaks induced by the topological defects of carbon nanotube intramolecular junctions. Physical Review B - Condensed Matter and Materials Physics 73 (24) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.73.245414
dc.identifier.issn10980121
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/97730
dc.description.abstractThe vibrational modes of some single-wall carbon nanotube (SWNT) intramolecular junctions (IMJs) have been calculated using the latest Brenner reactive empirical bond order (REBO) potential, based on which their nonresonant Raman spectra have been further calculated using the empirical bond polarizability model. It is found that the Raman peaks induced by pentagon defects lie out of the G -band of the SWNTs; thus, the high-frequency part of the Raman spectra of the SWNT IMJs can be used to experimentally determine their detailed geometrical structures. Also, the intensity of the Raman spectra has a close relation with the number of pentagon defects in the SWNT IMJs. Following the Descartes-Euler polyhedral formula, the number of heptagon defects in the SWNT IMJs can also be determined. The first-principles calculations are also performed, verifying the results obtained by the REBO potential. The G band width of the SWNT IMJ can reflect the length of its transition region between the pentagon and heptagon rings. © 2006 The American Physical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1103/PhysRevB.73.245414
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1103/PhysRevB.73.245414
dc.description.sourcetitlePhysical Review B - Condensed Matter and Materials Physics
dc.description.volume73
dc.description.issue24
dc.description.page-
dc.description.codenPRBMD
dc.identifier.isiut000238696900112
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