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Multiferroic Properties of Rare Earth-Doped BiFeO3 and Their Spintronic Applications

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Metal and Metal Oxides for Energy and Electronics

Abstract

Advancement in the understanding of a material type is often the forerunner to the stepwise progression of a technology. Multiferroic oxides are one of the most recent classes of materials having the unique property of exhibiting mutually ferromagnetism and ferroelectricity in a single phase. These include bismuth ferrite (BiFeO3), bismuth manganite (BiMnO3), dysprosium magnetite (DyMnO3), etc. BiFeO3 (bismuth ferrite referred to as BFO) is identified as the only material that exhibits antiferromagnetism and ferroelectricity at room temperature and has been extensively studied from the perspective of device applications. Due to its high Néel temperature, high Curie temperature, and a giant polarization value, an explosion of research interest in the growth, structural, optical, electrical, and magnetic properties of BFO has been observed recently. Till date, the synthesis of single-phase BFO remains a challenging issue because of its narrow temperature range of phase stabilization. The kinetics of formation leads to a mixture of major phase (BFO) along with secondary phases such as Bi2Fe4O9 and Bi25FeO39 which can be eliminated by partial substitution of A-site (Bi3+) by rare earth (RE) ions which could improve the phase purity and thereby improve the electrical and magnetic properties.

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Acknowledgments

The authors acknowledge FONDECYT Postdoctoral Research Project No. 3180055, Government of Chile, for the financial support.

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Correspondence to Ali Akbari-Fakhrabadi .

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Muneeswaran, M., Gopiraman, M., Dhanabalan, S.S., Giridharan, N.V., Akbari-Fakhrabadi, A. (2021). Multiferroic Properties of Rare Earth-Doped BiFeO3 and Their Spintronic Applications. In: Rajendran, S., Qin, J., Gracia, F., Lichtfouse, E. (eds) Metal and Metal Oxides for Energy and Electronics. Environmental Chemistry for a Sustainable World, vol 55. Springer, Cham. https://doi.org/10.1007/978-3-030-53065-5_11

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