کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8156097 1524840 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Superparamagnetic behavior of indium substituted NiCuZn nano ferrites
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Superparamagnetic behavior of indium substituted NiCuZn nano ferrites
چکیده انگلیسی
Nano structured indium substituted NiCuZn ferrites with chemical composition Ni0.5Cu0.25Zn0.25Fe2−xInxO4 (0.0≤x≤0.4) were prepared using citrate-gel method. The XRD analysis confirmed the formation of single phased cubic spinel structure with a crystallite size ranging from 25 to 34 nm. The morphology of the prepared samples was studied using transmission electron microscopy and the thermal growth of the samples was analyzed by thermo gravimetric analysis and differential thermal analysis. Magnetic properties such as the Curie temperature and the temperature dependence magnetization studies of the samples were carried out using vibrating sample magnetometer. From the temperature dependence of both the field cooled and Zero field cooled magnetization measurements in the temperature range 50-350 K under an applied field of 500 Oe, the blocking temperature (Tb) was estimated to be 325 K. Above Tb the material shows superparamagnetic behavior which makes the material desirable for biomedical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 381, 1 May 2015, Pages 416-421
نویسندگان
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