Figure 14
NaTi2(PO4)3 temperature dependent (a) a axis and (b) c axis unit-cell parameters, (c) unit-cell volume, (d) thermal expansion coefficients along the a and c axes, and average linear thermal expansion, (e) atomic displacement parameters, (f) Na+ to Ti4+ distance which describes the Na+ site size, (g) P—O—Ti inter-polyhedral angles, and (h) φ angles describing TiO6 octahedral rotation. Datasets are shown for both heating and cooling. |