کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5488352 | 1524071 | 2017 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of gamma irradiation on some electrical and dielectric properties of Ce3+ substituted Ni-Zn nano ferrites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report on the synthesis of cerium substituted nickel zinc nano ferrites of compositions x =â0.2, 0.4, 0.6, 0.8, 1, and y =â0.1âand on the effect of gamma irradiation on their electrical properties. The samples were synthesized by employing a non-conventional nitrate gel auto combustion technique with a sintering temperature of 600 °C. The structural studies of the as-synthesized ferrites using powder XRD reveal no significant impurity peaks in the obtained pattern, and the crystallite size is in the range of 8-37 nm. Upon irradiation with gamma radiation emitted by Co60 with a constant dose rate of 4.97 kGray, the electrical and dielectric properties of the ferrite samples were significantly altered. The DC resistivity of the irradiated ferrite showed a five-fold decrease in its value, which may be due to the hopping of Fe2+ ions at the B-site.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Physics - Volume 55, Issue 4, August 2017, Pages 1729-1738
Journal: Chinese Journal of Physics - Volume 55, Issue 4, August 2017, Pages 1729-1738
نویسندگان
N. Chandamma, Santhosh Kumar M. V., G.J. Shankarmurthy, E. Melagiriyappa, K.K. Nagaraja,