title: Resonant Raman spectroscopy of individual strained single-wall carbon nanotubes.
abstract: Resonance Raman spectra of individual strained ultralong single-wall carbon nanotubes (SWNTs) are studied. Torsional and uniaxial strains are introduced by atomic force microscopy manipulation. Torsional strain strongly affects the Raman spectra, inducing a large downshift in the E2 symmetry mode in the G+ band, but a slight upshift for the rest of the G modes and also an upshift in the radial breathing mode (RBM). Whereas uniaxial strain has no effect on the frequency of either the E2 symmetry mode in the G+ band or the RBM, it downshifts the rest of the G modes. The Raman intensity change reflects the effect of these strains on the SWNT electronic band structure.
authors.affiliation: Centre for Nanoscale Science and Technology, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Duan
authors.forename: Hyungbin
authors.initials: H
authors.lastname: Son
authors.forename: Bo
authors.initials: B
authors.lastname: Gao
authors.forename: Jin
authors.initials: J
authors.lastname: Zhang
authors.forename: Tianjiao
authors.initials: T
authors.lastname: Wu
authors.forename: Georgy G
authors.initials: GG
authors.lastname: Samsonidze
authors.forename: Mildred S
authors.initials: MS
authors.lastname: Dresselhaus
authors.forename: Zhongfan
authors.initials: Z
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Kong
mesh_terms: D018625:Microscopy, Atomic Force; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D013059:Spectrum Analysis, Raman
chemical_list: D037742:Nanotubes, Carbon