Dielectric Properties of the Bismuth Neodymium Titanate Pyrochlore Solid Solution
The dielectric properties of a new, cubic, pyrochlore‐type solid solution Bi(1.6−1.08x)Nd
have been studied across the compositional range 0.35 < x < 0.86. The dielectric constant (ε) of the ceramics based on the pyrochlore‐type solid solution within the experimental compositional range varied from 104 to 76 at 1 MHz, whereas the
dielectric losses were well below tan δ = 8 × 10−3. The temperature coefficient of the dielectric constant τk for single‐phase pyrochlore samples was found to be in the range between −20 and −40 ppm/K.
Below room temperature dielectric relaxation phenomena were observed for all the compositions.