Charge and sodium ordering in beta-Na_0.33V_2O_5
P.H.M. van Loosdrecht, C.N. Presura, M. Popinciuc, D. van der Marel,, G. Maris, T.T.M. Palstra, P.J.M. van Bentum, H. Yamada, T. Yamauchi, and Y., Ueda
TL;DR
This paper investigates the sodium and charge ordering transitions in beta-Na0.33V2O5 using polarized Raman and optical spectra, revealing strong electron-phonon coupling and temperature-dependent structural changes.
Contribution
It provides new spectroscopic evidence of sodium and charge ordering transitions in beta-Na0.33V2O5 and discusses their implications for electron-phonon interactions.
Findings
Evidence of sodium and charge ordering transitions
Presence of strong electron-phonon coupling
Temperature-dependent spectral changes
Abstract
Polarized Raman and optical spectra for the quasi one-dimensional metallic vanadate beta-Na0.33V2O3 are reported for various temperatures. The spectra are discussed in the light of the sodium and charge ordering transitions occurring in this material, and demonstrate the presence of strong electron phonon coupling.
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Taxonomy
TopicsTransition Metal Oxide Nanomaterials · Catalysis and Oxidation Reactions · Gas Sensing Nanomaterials and Sensors