6533b833fe1ef96bd129c32b

RESEARCH PRODUCT

Second-order Raman scattering in CuO

Alexander P. LitvinchukAlexander P. LitvinchukPeter KrügerL. DebbichiMarin GospodinovAngela MöllerAngela MöllerMilko IlievMilko Iliev

subject

Quasielastic scatteringCondensed matter physicsPhonon scatteringScatteringChemistryInelastic scatteringMott scatteringCondensed Matter PhysicsMolecular physicsLight scatteringX-ray Raman scatteringCondensed Matter::SuperconductivityGeneral Materials ScienceBiological small-angle scattering

description

Polarized second-order Raman scattering spectra of CuO single crystals are reported. It is shown that for some scattering geometries the second-order processes dominate the inelastic light scattering spectra. Group-theoretical symmetry analysis of the selection rules for the first- and second-order scattering processes is performed and phonon dispersion relations are calculated within density functional theory. The main spectral features of the two-phonon spectra are assigned to overtones of the vibrational branches at various special points across the Brillouin zone.

yearjournalcountryeditionlanguage
2013-02-08Journal of Physics: Condensed Matter
https://doi.org/10.1088/0953-8984/25/10/105402