PreprintCC BY 4.0arXiv
Detection of acoustic phonons in carbon by Raman spectroscopy
Abstract
We detected acoustic phonons in graphite and diamond by Raman spectroscopy supported by density functional theory calculations. The activation of these normally forbidden Raman modes was achieved via lattice amorphization in case of graphite and by boron doping in case of diamond. The doping-induced Raman signal in diamond was identified with substitutional boron of tetrahedral symmetry via its dependences on excitation wavelength and polarization. Comparison of the Raman spectra of amorphized graphite and heavily boron-doped diamond suggests the emergence of graphitic-like disorder in the diamond lattice. The reported approach is not limited to carbon and can be extended to a wide range of other materials.
Versions
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BibTeX
@misc{iakoubovskii2026detection,
title = {{Detection of acoustic phonons in carbon by Raman spectroscopy}},
author = {Konstantin Iakoubovskii and Andrey Katrusha and Weihua Peng and Jianguo Peng},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.26170},
eprint = {2609.26170},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.26170},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Detection of acoustic phonons in carbon by Raman spectroscopy
AU - Konstantin Iakoubovskii
AU - Andrey Katrusha
AU - Weihua Peng
AU - Jianguo Peng
PY - 2026
DA - 2026/09/01
PB - arXiv
DO - 10.48550/arxiv.2609.26170
UR - https://arxiv.org/abs/2609.26170
AB - We detected acoustic phonons in graphite and diamond by Raman spectroscopy supported by density functional theory calculations. The activation of these normally forbidden Raman modes was achieved via lattice amorphization in case of graphite and by boron doping in case of diamond. The doping-induced Raman signal in diamond was identified with substitutional boron of tetrahedral symmetry via its dependences on excitation wavelength and polarization. Comparison of the Raman spectra of amorphized graphite and heavily boron-doped diamond suggests the emergence of graphitic-like disorder in the diamond lattice. The reported approach is not limited to carbon and can be extended to a wide range of other materials.
ER -