TY - JOUR
KW - paper
AU - J. Flores-Livas
AU - L. Lehtovaara
AU - M. Amsler
AU - S. Goedecker
AU - S Pailhes
AU - Silvana Botti
AU - A. San Miguel
AU - M Marques
AB - Raman spectroscopy is a powerful tool to study the intrinsic vibrational characteristics of crystals, and, therefore, it is an adequate technique to explore phase transitions of carbon under pressure. However, the diamond-anvil cell, which is used in experiments to apply pressure, appears as a broad intense feature in the spectra. This feature lies, unfortunately, in the same range as the principal modes of recently proposed sp3 carbon structures. As these modes are hard to distinguish from the diamond cell background, we analyze all Raman-active modes present in the sp3 carbon structures in order to find detectable fingerprint features for an experimental identification.
BT - Phys. Rev. B
DO - 10.1103/PhysRevB.85.155428
N2 - Raman spectroscopy is a powerful tool to study the intrinsic vibrational characteristics of crystals, and, therefore, it is an adequate technique to explore phase transitions of carbon under pressure. However, the diamond-anvil cell, which is used in experiments to apply pressure, appears as a broad intense feature in the spectra. This feature lies, unfortunately, in the same range as the principal modes of recently proposed sp3 carbon structures. As these modes are hard to distinguish from the diamond cell background, we analyze all Raman-active modes present in the sp3 carbon structures in order to find detectable fingerprint features for an experimental identification.
PY - 2012
T2 - Phys. Rev. B
TI - Raman activity of sp3 carbon allotropes under pressure: A density functional theory study
UR - http://link.aps.org/doi/10.1103/PhysRevB.85.155428
VL - 85, 155428
ER -