کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1616219 1516370 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of synthesis approach on structural and magnetic properties of lithium ferrite nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Influence of synthesis approach on structural and magnetic properties of lithium ferrite nanoparticles
چکیده انگلیسی
► Nanocrystalline Li0.5Fe2.5O4 ferrites were synthesized with an average crystallite size of 12.3 nm and 5.7 nm by chemical co-precipitation and reverse microemulsion technique respectively. ► The non-saturated M-H loops, absence of hysteresis, remanence and coercivity at room temperature is indicative of the presence of superparamagnetic and single-domain particles for both the materials. ► The blocking temperature TB shifts to lower temperature with the increase of applied field, which is attributed to the reduction of magnetocrystalline anisotropy constant. ► At high temperature, microemulsion synthesized nanoparticles are observed to show a maxima immediately below the Curie temperature which is attributed to the cumulative effect of the anisotropy variation of temperature and particle size growth during the measurement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 523, 15 May 2012, Pages 36-42
نویسندگان
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