کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9793036 | 1513960 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation Dipole alignment and dielectric susceptibility of defective ferroelectric: Monte-Carlo simulation](/preview/png/9793036.png)
چکیده انگلیسی
We present a Monte-Carlo simulation on the dipole alignment configuration and dielectric susceptibility of a defective ferroelectric lattice with randomly distributed lattice defects in the framework of the Ginzburg-Landau theory. These defects are assumed to suppress locally the electric dipoles. It is found that with increasing defect concentration the dipole lattice configuration evolves from a normal ferroelectric state to a two-phase coexisted state, where highly polarized regions are embedded in a paraelectric matrix. The dielectric susceptibility in lattices with various defect distributions is studied. The simulated results are used to explain the measured dielectric response in ferroelectric copolymers containing defects induced by proton irradiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 33, Issues 1â3, April 2005, Pages 66-73
Journal: Computational Materials Science - Volume 33, Issues 1â3, April 2005, Pages 66-73
نویسندگان
J.-M. Liu, K.F. Wang, S.T. Lau, H.L.W. Chan, C.L. Choy,