# Polarization properties, high-order Raman spectra, and frequency asymmetry between Stokes and anti-Stokes scattering of Raman modes in a graphite whisker

@article{Tan2001PolarizationPH,
title={Polarization properties, high-order Raman spectra, and frequency asymmetry between Stokes and anti-Stokes scattering of Raman modes in a graphite whisker},
author={Pingheng Tan and Chengyong Hu and Jian Dong and Wanci Shen and Baofa Zhang},
journal={Physical Review B},
year={2001},
volume={64},
pages={214301}
}
• Published 12 November 2001
• Chemistry, Materials Science
• Physical Review B
The Raman spectra of a new type of graphite whiskers have been measured in the range of $150--7800{\mathrm{cm}}^{\ensuremath{-}1}.$ The intensity of the overtone $(2D)$ located at $\ensuremath{\sim}2700{\mathrm{cm}}^{\ensuremath{-}1}$ is found to be about 10 times stronger than that of the C-C stretching mode (G) at $1582{\mathrm{cm}}^{\ensuremath{-}1}.$ Because of the peculiar enhancement of the $2D$ mode, high-order Raman bands up to fifth order at $\ensuremath{\sim}7500{\mathrm{cm… 139 Citations ## Figures and Tables from this paper • Chemistry • 2002 The nature of the D band in the Raman spectrum of graphite has been the subject of considerable discussion. We examine the relationship between the depolarization characteristics of the D, • Physics • 2002 We report a study of second-order combination and overtone modes in highly ordered pyrolytic graphite (HOPG), in single-wall carbon nanotube (SWNT) bundles and in isolated SWNTs. We found both • Chemistry • 2020 The paper presents a cooperative consideration of Raman spectra of$^2\$ amorphous carbons as well as the nature and type of their amorphicity. The latter was attributed to the amorphization of a new
• Physics
• 2005
We have developed the electron-phonon matrix element in single-wall carbon nanotubes by using the extended tight-binding model based on density functional theory. We calculate this matrix element to
• Chemistry
• 2015
Raman spectroscopy plays a key role in studies of graphene and related carbon systems. Graphene is perhaps the most promising material of recent times for many novel applications, including
• Physics, Chemistry
Nano letters
• 2014
A full summary of phonon frequencies for (6,5) nanotubes is provided that can serve as a basic reference with which to refine the understanding of nanotube phonon spectra as well as a testbed for new theoretical models.
• Physics
The Review of scientific instruments
• 2017
This study shows how a filter-based ULF Raman system can be used to reliably achieve Brillouin spectroscopy for condensed materials with high sensitivity and high signal-to-noise ratio, stimulating fast BrillouIn spectrum measurements to probe acoustic phonons in semiconductors.