Comparative assessment of structural, magnetic and impedance properties of xLaMnO3-(1-x)BiFeO3 solid solutions

Autor: Kaur Shubhpreet, Paswan Manikant
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Processing and Application of Ceramics, Vol 18, Iss 3, Pp 307-313 (2024)
Druh dokumentu: article
ISSN: 1820-6131
2406-1034
DOI: 10.2298/PAC2403307L
Popis: BiFeO3 (BFO) is extensively researched due to its lead-free composition, high ordering temperature, remarkable polarization and useful electric and magnetic switching mechanism for data storage devices. On the other hand, the superexchange ordered system of LaMnO3 (LMO) is well-suited for fuel cells. This study examines the structural, magnetic and impedance properties of xLaMnO3-(1-x)BiFeO3 solid solutions (x = 0.05, 0.10 and 0.20) prepared using the solid state reaction method and sintering. X-ray diffraction technique confirmed single phase material with the hexagonal structure and R3c symmetry. The vibrating sample magnetometer showed the change from antiferromagnetic behaviour of BFO to weak ferromagnetic behaviour of BFO/LMO ceramics and maximum remnantmagnetization of 0.206 emu/g for x = 0.10. The superexchange interactions are responsible for this magnetic behaviour. Impedance analysis was used to investigate the dielectric relaxation and the negative temperature coefficient of resistance.
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