کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1616817 | 1005671 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Coexistence of room temperature ferroelectricity and ferrimagnetism in multiferroic BiFeO3–Bi0.5Na0.5TiO3 solid solution Coexistence of room temperature ferroelectricity and ferrimagnetism in multiferroic BiFeO3–Bi0.5Na0.5TiO3 solid solution](/preview/png/1616817.png)
The structure, ferroelectric and magnetic properties of (1 − x)BiFeO3–xBi0.5Na0.5TiO3 (x = 0.37) solid solution fabricated by a sol–gel method have been investigated. X-ray diffraction and Raman spectroscopy measurements show a single-phase perovskite structure with no impurities identified. Compared with pure BiFeO3, the coexistence of ferroelectricity and ferrimagnetism have been observed at room temperature for the solution with remnant polarization Pr = 1.41 μC/cm2 and remnant magnetization Mr = 0.054 emu/g. Importantly, a magnetic transition from ferrimagnetic (FM) ordering to paramagnetic (PM) state is observed, with Curie temperature TC ∼ 330 K, being explained in terms of the suppression of cycloid spin configuration by the structural distortion.
► In this study, the coexistence of ferroelectrics and ferrimagnetism have been observed at room temperature for the (1 − x)BiFeO3–xBi0.5Na0.5TiO3 (x = 0.37) solid solutions.
► X-ray diffraction and Raman spectroscopy measurements show a single-phase perovskite structure with no impurities identified.
► A magnetic transition from paramagnetic (PM) to ferrimagnetic (Ferri) ordering is observed for the solution with Curie temperature TC ∼ 330 K.
Journal: Journal of Alloys and Compounds - Volume 509, Issue 32, 11 August 2011, Pages 8144–8148