Dielectric constant measurement of ferroelectric solid solutions of potassium-cesium vanadate and potassium-lithium vanadate

Dielectric properties of solid solutions of potassium-cesium vanadate and potassium-lithium vanadate have been studied covering their transition points, following the method based on comparison of capacities. The dielectric constant(ε) shows a sharp peak at a phase transition in all the compositions. The Curie temperature as well as the ε of the solid solutions, potassium-cesium vanadate decreases with the increase of potassium vanadate concentration. However, the Curie temperature and ε increase for the solid solutions of potassium-lithium vanadate with the increase of potassium vanadate concentration. (author). 10 refs., 2 figs