Studies on Multiferroic Behavior of Y-Mn Co-Doped Bi0.9La0.1FeO3

• Published in: Journal of electronic materials 2022-12, Vol.51 (12), p.6689-6698
• Main Authors: Jose, P. Josely, Rathod, Urjitsinh, Savaliya, Chirag, Jethva, Sadaf, Panchasara, Akshay, Katba, Savan, Keshvani, Mukesh, Vagadia, Megha, Ravalia, Ashish
• Format: Article
• Language: English
• Subjects: Bismuth; Characterization and Evaluation of Materials; Chemistry and Materials Science; Dielectric properties; Doping; Electric fields; Electronics and Microelectronics; Ferroelectricity; Instrumentation; Magnetic properties; Magnetometers; Materials Science; Modulation; Multiferroic materials; Optical and Electronic Materials; Solid State Physics; Synthesis and Advanced Characterization of Magnetic Oxides; Topical Collection: Synthesis and Advanced Characterization of Magnetic Oxides; X-ray diffraction
• ISSN: 0361-5235; 1543-186X
• DOI: 10.1007/s11664-022-09972-2

To understand the multiferroic behavior of the Y and Mn co-doped Bi 0.9 La 0.1 FeO 3 system, we have synthesized Bi 0.9 La 0.1 FeO 3 with the co-doped composition of Bi (0.9−a) Y a La 0.1 Fe (1−b) Mn b O 3 ( a  = 0.05, b  = 0.05, 0.10, 0.15, 0.20, and a  = 0.10, b  = 0.10) using the solid-state reaction method. The role of Y and Mn co-doping on the structural, magnetic, ferroelectric, and dielectric properties were studied by various characterization techniques, such as x-ray diffraction, vibrating sample magnetometer (VSM), polarization–electric field (P–E) loop tracer, and dielectric measurements. X-ray diffraction studies show that a 5% doped sample is single phasic nature and crystallizes in rhombohedral (R3c) symmetry, whereas higher doped samples are dual-phase in nature with minor impurity Bi 2 Fe 4 O 9 and crystallize in rhombohedral (R3c) and cubic (Pm-3 m) modulation in structural parameters with Y and Mn doping. The modulation in magnetic behavior with Y and Mn doping has been investigated and studied in the context of modification in the different interactions. P–E loop behavior is observed for lower Y (5%) and Mn (5, 10, 15%) doped samples, whereas a lossy/leaky loop is found for higher doped samples (Y-5, 10%, and Mn-20%). Lastly, the real and imaginary parts of dielectric permittivity indicate doping-induced increases in the values of ε ′ and ε ″.