کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1593734 | 1515645 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced ferromagnetism at the rhombohedral–tetragonal phase boundary in Pr and Mn co-substituted BiFeO3 powders
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effects of Pr substitution on the structure and magnetism of Bi(Fe0.95Mn0.05)O3 powders are investigated systemically. X-ray diffraction and Raman spectra results confirm a phase transition from rhombohedral to tetragonal structure with increasing Pr concentration and the phase boundary occurs at 14% Pr substitution. At the phase boundary composition, enhanced room temperature ferromagnetism has been observed with a remanent magnetization about 0.260 emu/g. The increased magnetization can be understood considering both the modification of the short-range canted G-type antiferromagnetic order at phase boundaries and the suppression of long-range incommensurate spin cycloid of BiFeO3 by Pr substitution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 150, Issues 43–44, November 2010, Pages 2081–2084
Journal: Solid State Communications - Volume 150, Issues 43–44, November 2010, Pages 2081–2084
نویسندگان
Zheng Wen, Xuan Shen, Di Wu, Qingyu Xu, Junling Wang, Aidong Li,