A review of the structure,magnetic and electrical properties of bismuth ferrite (Bi2Fe4O9) |
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| Affiliation: | 1. Universidade Federal do ABC, Santo André 09210-580, SP, Brazil;2. Instituto de Pesquisas Energéticas e Nucleares, Universidade de São Paulo, 05508-000 São Paulo, Brazil;2. Functional Ceramics Group, Korea Institute of Materials Science, Changwon, Gyeongnam 641-831, Republic of Korea;1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;2. School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China;3. Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100024, China;1. Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai 200241, China;2. Instrumental Analysis and Research Center, Institute of Materials, Shanghai University, 99 Shangda Road, Shanghai 200444, China |
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| Abstract: | Nowadays, investigations on the materials with multiferroic properties are in progress. These materials compromise simultaneous electric and magnetic properties. Ferrite Bismuth (FB) is one of the ceramic materials that enjoy this property and possesses three different crystalline structures (perovskite BiFeO3, selenite Bi25FeO40 and mullite Bi2Fe4O9). In this review, first, the crystalline structure and the electric and magnetic properties of Bi2Fe4O9 are studied, and then, the effects of adding dopants to the ferrite are discussed. Mullite-type bismuth ferrite (Bi2Fe4O9) as a spin frustrated multiferroic has potential for magnetoelectric coupling, and it might be an appropriate alternative for some of the multiferroics that suffer from a weak magnetoelectric coupling. |
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| Keywords: | Ceramic Mullite-structured bismuth ferrite Frustrated spin system Magnetic properties Ferroelectric properties |
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