کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1816898 1025695 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of imperfect surface layers on dielectric and pyroelectric properties of ferroelectric thin film
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Influence of imperfect surface layers on dielectric and pyroelectric properties of ferroelectric thin film
چکیده انگلیسی
Using the Ginzburg-Laudau-Devonshire theory and taking into account structural difference between imperfect surface layers and bulk ferroelectrics, the dielectric and pyroelectric properties of ferroelectric thin films coated with two metallic electrodes have been studied. The numerical results show that the effects of imperfect surface layers are to increase the effective dielectric susceptibility at room temperature through lowering the phase transition temperature. Both the dielectric susceptibility peak and pyroelectric coefficient peak shift to lower temperatures due to the contribution of the imperfect surface layers. The incompletely screened non-uniform depolarization field makes the susceptibility distribution more uniform.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 373, Issue 2, 15 March 2006, Pages 177-181
نویسندگان
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