2000/01/12 by Z. V. Popovic, Z. V. Popović, R. Gajic +10 · 1 citation
Chemistry · Materials Science · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Analytical Chemistry (journal) #Chemistry #Condensed matter physics #Crystallography #Geometry #Infrared #Infrared spectroscopy #Materials science #Mathematics #Nuclear magnetic resonance #Optics #Phonon #Physics #Physics of Superconductivity and Magnetism #Raman scattering #Raman spectroscopy #Spectral line #Symmetry (geometry) #Transition Metal Oxide Nanomaterials #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.61.11454
published as Phys. Rev. B vol. 61, 11454 (2000) · 10 pages, 5 figures
arxiv created 2000/01/12 · openalex publication_date 2000/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The phonon dynamics of LiV2O5 single crystals is studied using infrared and Raman spectroscopy techniques. The infrared-active phonon frequencies and dielectric constants are obtained by oscillator fitting procedure of the reflectivity data measured at room temperature. The Raman-scattering spectra are measured at room temperature and at T=10K in all nonequivalent polarized configurations. The assignment of the phonons is done by comparing the infrared and Raman spectra of LiV2O5 and NaV2O5. The factor-group analysis of the LiV2O5 crystal symmetry and of its constituent layers is performed to explain the symmetry properties of the observed modes. We concluded that layer symmetry dominates in the vibrational properties of this compound.