@article{10902/29186,
year = {2013},
month = {2},
url = {https://hdl.handle.net/10902/29186},
abstract = {Studies of the mechanical properties of single-walled carbon nanotubes are hindered by their availability
only as ensembles of tubes with a range of diameters. However, tunable Raman spectroscopy is capable of identifying individual tubes from such ensembles. Interestingly, both the radial breathing mode and, surprisingly, the G-mode pressure coefficients exhibit strong environmental effects, which are largely independent of the nature of the environment. We show that the G-mode pressure coefficient varies with diameter, consistent with the thick-wall tube model. Reappraisal of literature data for graphene and graphite suggests revision of both the G-mode Gr¨uneisen parameter γ and the shear deformation parameter β toward the value of 1.34.},
organization = {We acknowledge financial support from the Engineering and Physical Sciences Research Council. I.H. acknowledges
funding from the Royal Academy of Engineering and the European Union (FP7 MC-CIG).},
publisher = {American Physical Society},
publisher = {Physical Review B - Condensed Matter and Materials Physics, 2013, 87(8), 085416},
title = {Pressure coefficients of Raman modes of carbon nanotubes resolved by chirality: environmental effect on graphene sheet},
author = {Ghandour, Ahmad J. and Crowe, Iain F. and Proctor, John Edward and Sun, Yiwei and Halsall, Matthew P. and Hernández Campo, Ignacio and Sapelkin, Andrei and Dunstan, David J.},
}