What is the relationship between magnetoelasticity and the microstructure of grains in BiFeO3?
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The relationship between magnetoelasticity and the microstructure of grains in BiFeO3 is significant. Studies on BiFeO3 powders sintered by flash and spark plasma sintering revealed that a phase transition anomaly at 250 K is linked to magneto-elastic coupling, becoming less defined as grain sizes decrease . Additionally, BiFeO3-GdMnO3 solid solutions exhibited enhanced ferromagnetic properties with increasing GdMnO3 concentration, showcasing a strong magnetodielectric coupling . Furthermore, the magnetization of BiFeO3 powders synthesized through conventional sintering and ball milling correlated linearly with grain size, indicating finite size effects and the presence of exchange bias . The chemical composition variations in Bi1−xAexFe1−xTixO3 solid solutions influenced their crystal structure and magnetic behavior, with certain substitutions stabilizing weak ferromagnetic ferroelectric states .
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3 Citations | The Bi-excess in BiFeO3 nanoparticles influences magnetoelasticity, with Bi0.05FeO3 showing weak ferromagnetic behavior and a maximum saturation magnetization of 0.24 emu/g. |
| Variations in chemical composition in BiFeO3-based multiferroics influence crystal structure and magnetic behavior, showcasing a tight coupling between magnetostructural correlations in grains. | |
| The magnetization of BiFeO3 powders is influenced by the grain size, showing a linear relationship with the reciprocal of the grain size due to the finite size effect. | |
29 Jan 2021 | The microstructure of grains in BiFeO3 influences magnetoelastic properties, as shown in the study on BiFeO3-GdMnO3 multiferroics, indicating a relationship between microstructure and magnetoelasticity. |
| The magnetoelastic coupling in BiFeO3 is linked to grain size reduction, affecting the clarity of the low-temperature phase transition, as observed in flash and spark plasma sintering methods. |
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