کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10629525 | 991068 | 2014 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of dysprosium substitution on crystal structure and physical properties of multiferroic BiFeO3 ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of dysprosium substitution on crystal structure and physical properties of multiferroic BiFeO3 ceramics Effect of dysprosium substitution on crystal structure and physical properties of multiferroic BiFeO3 ceramics](/preview/png/10629525.png)
چکیده انگلیسی
The polycrystalline samples of multiferroic Bi1âxDyxFeO3 (x = 0, 0.1, and 0.2) were prepared by a modified solid state reaction method and characterized by X-ray diffraction, scanning electron microscopy, differential thermal analysis, dielectric and magnetic measurements. It was shown that the introduction of the Dy3+ ions stabilizes the perovskite structure and improves phase purity. The coexistence of the rhombohedral and orthorhombic phases was found to exist within the investigated concentration range 0.1 â¤Â x â¤Â 0.2. The changes and anomalies observed in dielectric response over a wide frequency range were correlated with the structural evolution and the development in microstructure. The SQUID measurements of the field-dependent magnetization at different temperatures demonstrated Dy doping to be a very effective method for inducing a weakly ferromagnetic state in the ferroelectric R3c phase of BiFeO3 in the absence of an external magnetic field.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 34, Issue 3, March 2014, Pages 641-651
Journal: Journal of the European Ceramic Society - Volume 34, Issue 3, March 2014, Pages 641-651
نویسندگان
V. Koval, I. Skorvanek, M. Reece, L. Mitoseriu, H. Yan,