کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10714278 1025584 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-temperature dielectric properties of Gd2CuO4 ceramics
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
High-temperature dielectric properties of Gd2CuO4 ceramics
چکیده انگلیسی
A sample of Gd2CuO4 (GCO) has been prepared through the solid state reaction technique. Dielectric properties of this material have been measured in detail as functions of temperature (between 285 and 450 K) and frequency (20 Hz-10 MHz). A step-like increase below 330 K and a broad peak around 360 K were observed in the real part of the permittivity (ε′) which were found to be originated from the oxygen vacancy hopping motions that cause a dipolar relaxation, followed by a Maxwell-Wagner relaxation as the hopping carriers are blocked by the interfaces and surfaces of the sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 407, Issue 7, 1 April 2012, Pages 1082-1085
نویسندگان
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