Investigation of structural and dielectric properties of subsolidus bismuth iron niobate pyrochlores

Subsolidus Bi3.36Fe2.08+x Nb2.56−x O14.56−x (BFN) pyrochlores prepared by solid-state reaction at 950°C over 48 h showed a moderate solid solution range of −0.24 ≤ x ≤ 0.48. As to preserve the over...