Influence of inverse spinel structured CuGa₂O₄ on microwave dielectric properties of normal spinel ZnGa₂O₄ ceramics

Spinel Zn 1‐ x C u x Ga 2 O 4 ( x = 0‐0.15) ceramics were prepared by the conventional solid‐state method. Only a single phase was indexed in all samples. The continuous lattice contraction of ZnGa 2 O 4 unit cell was caused by Cu 2+ substitution, and the lattice parameter shows a linear correlation with the content of Cu. The refined crystal structure parameters suggest that Cu 2+ preferentially occupies the octahedron site, and the degree of...