Phase composition, microstructure, and thermophysical and dielectric properties of multiferroic Bi 1− x Dy x FeO 3

An extensive study was performed to establish correlations between the crystal structure, the grain composition, and the dielectric and thermophysical properties of high-temperature multiferroics of the Bi 1− x Dy x FeO 3 type ( x = = 0.05–0.20). It is shown that a trade-off between the macroresponses in the materials is achieved at x = 0.10; this circumstance permits recommendation of the materials for practical use.