Author/Authors :
Semenova، نويسنده , , A. and Kellerman، نويسنده , , D. and Baklanova، نويسنده , , I. and Perelyaeva، نويسنده , , L. and Vovkotrub، نويسنده , , E.، نويسنده ,
Abstract :
We report on a Raman scattering study of the LiCoO2, γ-Na0.7CoO2 and Li0.42Na0.36CoO2 phases. The Raman spectrum of the ordered cobaltite Li0.42Na0.36CoO2 consists of a set of seven distinct peaks with the wave numbers around 190, 445, 467, 513, 572, 609 and 674 cm−1. It exhibits features of the spectra for LiCoO2 and γ-Na0.7CoO2 and therefore can be considered as a superposition of these two spectra. It may be supposed that in the structure of the double cobaltite the bonding between sodium- and lithium-containing blocks is rather weak.
