Structure and electrical properties of Bi1–xHoxFe1–xMnxO3 (x = 0.03, 0.06, and 0.09) multiferroic solid solutions

Resumo

Bi_1–xHo_xFe_1–xMn_xO₃ (x = 0.03, 0.06, and 0.09) solid solutions were prepared by ceramic technology; their crystal structure, thermal expansion, and electrical properties were studied. Bi_1–xHo_xFe_1–xMn_xO₃ compounds were found to crystallize in rhombohedral system (space group R3с). These compounds are p-type semiconductors. Their unit cell parameters, linear thermal expansion coefficient, and thermal emf decrease as x increases, while the electrical conductivity, dielectric permeability, and dielectric loss increase.