New vacancied and Dy3+-doped molybdates - Their structure, thermal stability, electrical and magnetic properties

Microcrystalline samples of new Cd1-3xDy2x⌷xMoO4 solid solution with limited homogeneity (03 eV at room temperature and the thermally activated conduction of the Arrhenius-type above 350 K. Moreover, the I-V characteristics provided the evidence of symmetrical and non-linear behavior typical of charge carrier emission weakly induced by the temperature. Relative dielectric permittivity εr below 10 as well as loss tangent tanδ below 0.15 do not substantially depend both on the temperature in the range of 76-400 K and the frequency in the range of 5·102-1·106 Hz. These results are interpreted in the framework of the acceptor and donor vacancy centers.