کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5461253 1516188 2017 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural and multiferroic properties of Bi0.885Sm0.115FeO3
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Structural and multiferroic properties of Bi0.885Sm0.115FeO3
چکیده انگلیسی
The structural, vibrational, ferroelectric, and magnetic properties of monophasic and highly crystalline pure BiFeO3 and Bi0.885Sm0.115FeO3 solids as prepared by standard solid-state reaction route were reported. X-ray diffraction (XRD) patterns confirmed the rhombohedral R3c structure of both BiFeO3 and Bi0.885Sm0.115FeO3 ceramics. Rietveld refinements of XRD data revealed that the doping ions lead to unit cell contraction in three directions due to lower ionic radii of Sm3+ ion (0.96 Å) substituted at higher ionic radii Bi3+ ion (1.03 Å). The room temperature ferroelectric and magnetic hysteresis loops present the coexistence of magnetism and ferroelectricity in a single phase. The ferroelectric hysteresis loops exhibit an unsaturated behavior and represent a partial reversal of polarization at room temperature. Besides, this the room temperature magnetization measurement leads to an appearance of weak ferromagnetism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 706, 5 June 2017, Pages 609-615
نویسندگان
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