用多域相场法研究反铁电电容器的开关动力学

IF 2.4 3区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Muhammad Mainul Islam;Mohammad Adnaan;Sou-Chi Chang;Hai Li;Ian A. Young;Azad Naeemi
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引用次数: 0

摘要

在这里,我们提出了一个基于多域相场方法的紧凑模型,该模型可以捕获金属-反铁电-金属结构中的磁滞回线和瞬态负电容(NC)区域。该模型自洽地求解随时间变化的Ginzburg-Landau (TDGL)方程和Poisson方程,分别评估极化和电位分布。我们还讨论了动态动力学系数对准确捕捉反铁电(AFE)电容器中NC效应的意义。所提出的模型熟练地捕获了在反铁电电容器的整个开关周期中观察到的所有四个瞬态NC区域(两个反铁电到铁电的转变和两个铁电到反铁电的转变)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigating the Switching Dynamics of Antiferroelectric Capacitor Using Multidomain Phase-Field Approach
Here, we present a compact model based on multidomain phase-field approach that can capture the hysteresis loop and the transient negative capacitance (NC) regions in Metal-Antiferroelectric-Metal structures. The model solves time-dependent Ginzburg-Landau (TDGL) and Poisson equation self-consistently to evaluate the polarization and potential distribution, respectively. We also discuss the significance of a dynamic kinetic coefficient to accurately capture the NC effect in antiferroelectric (AFE) capacitors. The proposed model adeptly captures all four transient NC regions (two antiferroelectric to ferroelectric transitions and two ferroelectric to antiferroelectric transitions) observed during a full switching cycle of an antiferroelectric capacitor.
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来源期刊
IEEE Journal of the Electron Devices Society
IEEE Journal of the Electron Devices Society Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
5.20
自引率
4.30%
发文量
124
审稿时长
9 weeks
期刊介绍: The IEEE Journal of the Electron Devices Society (J-EDS) is an open-access, fully electronic scientific journal publishing papers ranging from fundamental to applied research that are scientifically rigorous and relevant to electron devices. The J-EDS publishes original and significant contributions relating to the theory, modelling, design, performance, and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanodevices, optoelectronics, photovoltaics, power IC''s, and micro-sensors. Tutorial and review papers on these subjects are, also, published. And, occasionally special issues with a collection of papers on particular areas in more depth and breadth are, also, published. J-EDS publishes all papers that are judged to be technically valid and original.
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