Multiferroic and Magnetodielectric Effects in Multiferroic Pr2FeAlO6 Double Perovskite

Sheng Liu; Feng Xiang; Yulan Cheng; Yajun Luo; Jing Sun

doi:10.3390/nano12173011

Multiferroic and Magnetodielectric Effects in Multiferroic Pr₂FeAlO₆ Double Perovskite

Nanomaterials (Basel). 2022 Aug 30;12(17):3011. doi: 10.3390/nano12173011.

Authors

Sheng Liu¹, Feng Xiang¹, Yulan Cheng¹, Yajun Luo¹, Jing Sun²

Affiliations

¹ Hunan Institute of Engineering, College of Mechanical Engineering, No.88, East Fuxing Road, Xiangtan 411104, China.
² Hunan Institute of Engineering, School of Electrical and Information Engineering, Xiangtan 411104, China.

Abstract

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 Pr₂FeAlO₆ ceramic is prepared using a sol-gel process followed by a quenching treatment. The well-crystallized and purified Pr₂FeAlO₆ in trigonal structure with space group R3c is confirmed. A combination of the ferroelectric (2P_r = 0.84 μC/cm², 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.

Keywords: Pr2FeAlO6; double perovskites; magnetodielectric response; multiferroics.

Abstract

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