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Applicability of Well-Established Memristive Models for Simulations of Resistive Switching Devices

机译:精心设计的忆阻模型在模拟仿真中的适用性   电阻切换装置

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摘要

Highly accurate and predictive models of resistive switching devices areneeded to enable future memory and logic design. Widely used is the memristivemodeling approach considering resistive switches as dynamical systems. Here weintroduce three evaluation criteria for memristor models, checking forplausibility of the I-V characteristics, the presence of a sufficientlynon-linearity of the switching kinetics, and the feasibility of predicting thebehavior of two anti-serially connected devices correctly. We analyzed twoclasses of models: the first class comprises common linear memristor models andthe second class widely used non-linear memristive models. The linear memristormodels are based on Strukovs initial memristor model extended by differentwindow functions, while the non-linear models include Picketts physics-basedmemristor model and models derived thereof. This study reveals lackingpredictivity of the first class of models, independent of the applied windowfunction. Only the physics-based model is able to fulfill most of the basicevaluation criteria.
机译:需要电阻开关器件的高度准确和可预测的模型以实现未来的存储器和逻辑设计。忆阻建模方法被广泛使用,将电阻开关视为动态系统。在此我们介绍了忆阻器模型的三个评估标准,检查了I-V特性的合理性,开关动力学是否存在足够的非线性以及正确预测两个反串行连接器件的行为的可行性。我们分析了两类模型:第一类包括常见的线性忆阻器模型,第二类广泛使用的非线性忆阻器模型。线性忆阻器模型基于通过不同窗口函数扩展的Strukovs初始忆阻器模型,而非线性模型包括Picketts基于物理的忆阻器模型及其衍生模型。这项研究表明,第一类模型缺乏预测性,与所应用的窗函数无关。只有基于物理学的模型才能满足大多数基本评估标准。

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