Abstract
Some physical properties of K0.12Na0.54Ag0.34Nb4AsO13 powder, synthesized visa a solid-state reaction at 800 °C, are discussed in this study. The vibrational analysis verifies the existence of the AsO43− and NbO67− functional groups. The X-ray powder diffraction pattern and Rietveld refinement confirm the formation of a pure phase that crystallizes in an orthorhombic system with a Cmcm space group. The structure and chemical composition of the compound are studied using the Scanning Electron Microscopy and the Energy Dispersive Spectroscopy. Complex impedance spectroscopy is used to examine the electrical conductivity, dielectric properties and relaxation behavior of the aforementioned compound at different temperatures and across the 0.01 kHz–13 MHz frequency range. The correlation between K0.12Na0.54Ag0.34Nb4AsO13's crystalline structure and its ionic conductivity is also studied.
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