کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5030613 1470828 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of Flexoelectric Effects on Current-voltage Characteristic of Polydomain in Ferroelectric Thin Films
ترجمه فارسی عنوان
تأثیر تاثیرات فلکسوالکتریک بر خصوصیات ولتاژ پلیموئین در فیلم های نازک الکترونی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی

Strain gradients at domain walls in polydomain ferroelectric thin films generally are huge, reaching a value of 107-108 m-1, appears at domain walls. These huge strain gradients always play a considerable impact on polarization distribution via flexoelectricity. However, the ability of the flexoelectricity to tune the leakage current in ferroelectric nanofilms is untouched to date. By combining the phase field model and diffusion equations for an electron/electron hole, a self-consistent model is established to investigate the influence of flexoelectric effect on the current-voltage characteristic of Pt/Pb(Zr0.1Ti0.9)O3/Pt capacitor. It is shown that the longitudinal flexoelectric coefficient related coupling type would reduce the electric potential, and thus, increase the electron hole concentration and cause leakage current increasing in thin films. In contrast, the transverse flexoelectric coefficient related coupling type would raise the electric potential, decrease the electron hole concentration and cause leakage current decreasing in thin films.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia IUTAM - Volume 21, 2017, Pages 56-62
نویسندگان
, , ,