The enhanced ferromagnetic property of BiFeO3-YMnO3 system

Single-phase multiferroic materials are important both in basic research and practical applications. In this research, solid solutions of (1-x) BiFeO₃-xYMnO₃ (x = 0, 0.05, 0.1) were synthesized by rapid liquid phase sintering method. The phase structures, leakage current density, magnetic and ferroelectric properties were investigated. All the solid solution samples show a perovskite phase structure. The addition of YMnO₃ content was found to enhance the magnetization of the solid solutions, but the leakage current density was degenerated. Saturated electric hysteresis loop was obtained in the sample with 5% of YMnO₃ fraction at room temperature, while at 10% of YMnO₃ content the polarization loop present a leakage characteristic. The investigated materials may be promising as the diluted magnetic semiconductors in related applications.