کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1459597 989595 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrical conductivity and dielectric study of LaBaFe0.5Zn0.5MnO6−δ compound
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Electrical conductivity and dielectric study of LaBaFe0.5Zn0.5MnO6−δ compound
چکیده انگلیسی

The new perovskite oxide with formula LaBaFe0.5Zn0.5MnO6−δ has been investigated by X-ray powder diffraction and electrical impedances spectroscopy. The X-ray pattern refinement based on the Le Bail model is consistent with the formation of single phase type cubic structure. The complex impedance has been measured in the temperature and frequency ranges 278–573 K and 100 Hz–7 MHz, respectively. The Z′ and Z″ versus frequency plots were fitted to an equivalent circuit consisting of series of combinations of resistor, capacity and constant phase elements. The frequency dependence of the AC conductivity has been interpreted in terms of Joncher׳s law. The near values of activation energies obtained from the analysis of M″, conductivity data and equivalent circuit confirm that the transport results from ion hopping mechanism dominated by the motion of Zn, Fe and Mn ionic species in the structure of the investigated material.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 2, Part B, 1 February 2016, Pages 3673–3680
نویسندگان
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