@article{f2f4ac1cc4a9457b8717e2e9dcc1e5e9,
title = "In situ atomic force microscopy tip-induced deformations and Raman spectroscopy characterization of single-wall carbon nanotubes",
abstract = "In this work, an atomic force microscope (AFM) is combined with a confocal Raman spectroscopy setup to follow in situ the evolution of the G-band feature of isolated single-wall carbon nanotubes (SWNTs) under transverse deformation. The SWNTs are pressed by a gold AFM tip against the substrate where they are sitting. From eight deformed SWNTs, five exhibit an overall decrease in the Raman signal intensity, while three exhibit vibrational changes related to the circumferential symmetry breaking. Our results reveal chirality dependent effects, which are averaged out in SWNT bundle measurements, including a previously elusive mode symmetry breaking that is here explored using molecular dynamics calculations.",
author = "Araujo, {P. T.} and {Barbosa Neto}, {Neto, N. M.} and H. Chacham and Carara, {S. S.} and Soares, {J. S.} and Souza, {A. D.} and Cancado, {L. G.} and {de Oliveira}, {Oliveira, A. B.} and Batista, {R. J. C.} and Ernesto Joselevich and Dresselhaus, {M. S.} and A. Jorio",
note = "Rede Brasileira de Pesquisa e Instrumentacao em Nano-Espectroscopia Optica and INCT em Nanomateriais de Carbono (CNPq/MCTI); FAPEMIGThe authors thank A. G. Cano Marquez and J. Ribeiro-Soares for technical assistance, A. G. Souza Filho for very important input, and L. M. Malard, D. L. Mafra, and M. S. C. Mazzoni for critical reading of the manuscript. A.B.O. is thankful to Zhun-Yong Ong for valuable discussions regarding the molecular dynamics model. This work was supported by Rede Brasileira de Pesquisa e Instrumentacao em Nano-Espectroscopia Optica and INCT em Nanomateriais de Carbono (CNPq/MCTI) and FAPEMIG (PPM and Pronex BioNC grants).",
year = "2012",
month = aug,
day = "8",
doi = "10.1021/nl3016347",
language = "الإنجليزيّة",
volume = "12",
pages = "4110--4116",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "8",
}