Pressure-induced changes in the optical properties of quasi-one-dimensional $\beta$-Na${}_{0.33}$V${}_2$O${}_5$

Abstract

The pressure-induced changes in the optical properties of $\beta$-Na${}_{0.33}$V${}_2$O${}_5$ single crystals at room temperature were studied by polarization-dependent Raman and far-infrared reflectivity measurements under high pressure. From the changes in the Raman- and infrared-active phonon modes in the pressure range 9 - 12 GPa a transfer of charge between the different V sites can be inferred. The importance of electron-phonon coupling in the low-pressure regime is discussed.

7 pages, 5 figures

References in corpus (3)

• Charge ordering signatures in the optical properties of beta-Na0.33V2O5
• Leading interactions in the $\beta$-$Sr{V}_6{O}_{15}$ compound
• Charge-Order Pattern of the Low-Temperature Phase of NaV2O5 Uniquely Determined by Resonant X-Ray Scattering from Monoclinic Single Domain

Cited by in corpus (3)

• Infrared and Terahertz Spectroscopy of Strongly Correlated Electron Systems under Extreme Conditions
• Polaron physics and crossover transition in magnetite probed by pressure-dependent infrared spectroscopy
• Investigation of lattice dynamics, magnetism and electronic transport in $\beta$-Na${}_{0.33}$V${}_2$O${}_5$