کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1596005 1515703 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of annealing conditions on the magnetism of Vanadium-doped TiO2 powders
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Effect of annealing conditions on the magnetism of Vanadium-doped TiO2 powders
چکیده انگلیسی

In order to investigate the effect of annealing conditions on the structural and magnetic properties, Vanadium-doped TiO2 powders have been synthesized by a sol–gel technique in air and then postannealed in argon atmosphere at different temperatures from 500 to 850 ∘C. It is shown that the samples transform from anatase phase to rutile phase of TiO2 as the annealing temperature increases to 700 ∘C. Meanwhile, room temperature ferromagnetism is enhanced after postannealing in argon atmosphere and the ferromagnetism increases with annealing temperatures. A plausible explanation for the enhancement of ferromagnetism with annealing temperatures is presented in terms of bound magnetic polaron model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 146, Issues 11–12, June 2008, Pages 522–525
نویسندگان
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