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Multiferroic and Magnetodielectric Effects in Multiferroic Pr 2 FeAlO 6 Double Perovskite.

Sheng LiuFeng XiangYulan ChengYajun LuoJing Sun
Published in: Nanomaterials (Basel, Switzerland) (2022)
Single-phase multiferroics that allow the coexistence of ferroelectric and magnetic ordering above room temperature are highly desirable, and offer a fundamental platform for novel functionality. In this work, a double perovskite multiferroic Pr 2 FeAlO 6 ceramic is prepared using a sol-gel process followed by a quenching treatment. The well-crystallized and purified Pr 2 FeAlO 6 in trigonal structure with space group R3c is confirmed. A combination of the ferroelectric (2P r = 0.84 μC/cm 2 , E c = 7.78 kV/cm at an applied electric field of 20 kV/cm) and magnetic (2M r = 433 memu/g, H c = 3.3 kOe at an applied magnetic field of 1.0 T) hysteresis loops reveals the room-temperature multiferroic properties. Further, the magnetoelectric effect is observed from the measurements of magnetically induced dielectric response and polarization. The present results suggest a new complex oxide candidate for room-temperature multiferroic applications.
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