Yogesh N. Joglekar, Stephen J. Wolf,
... of the recently discovered ideal circuit element, a memristor. By definition, a memristor M relates the charge q and the magnetic ... of the standard curricula. The existence of the memristor as the fourth ideal circuit element was predicted ... year. We present the properties of a single memristor, memristors in series and parallel, as well as ideal memristor–capacitor (MC), memristor–inductor (ML) and memristor–capacitor–inductor (MCL) circuits. We find that the ...
Tópico(s): Neural dynamics and brain function
2009 - IOP Publishing | European Journal of Physics
Mohammad Javad Sharifi, Yaser M. Banadaki,
Memristor had been first theorized nearly 40 years ago by Prof. Chua, as the fourth fundamental circuit ... because no one has succeeded in building a memristor, it has long remained a theoretical element. Some ... ago, Hewlett-Packard (hp) announced it created a memristor using a TiO 2 /TiO 2-X structure. ... structures and relations for the invented hp's memristor are briefly reviewed and then two general SPICE models for the charge-controlled and flux-controlled memristors are introduced for the first time. By adjusting ...
Tópico(s): CCD and CMOS Imaging Sensors
2010 - World Scientific | Journal of Circuits Systems and Computers
Ehsan Nedaaee Oskoee, Muhammad Sahimi,
... circuits, which he called a memory resistor or memristor. Strukov et al. [Nature (London) 453, 80 (2008)] ... semiconducting films. Unlike other passive elements, however, a memristor with large sizes cannot be fabricated, because scale up of a memristor to dimensions of the order of microns causes ... region relative to the overall size of the memristor. A microscale memristor is, however, essential to most of the potential applications. One way of fabricating such a microscale memristor without losing the memristive effect is to make ...
Tópico(s): Neuroscience and Neural Engineering
2011 - American Physical Society | Physical Review E
Bocheng Bao, Hu Wen, Jianping Xu, Zhong Liu, Ling Zou,
Memristor with memory function is the fourth fundamental two-terminal circuit element, besides resistor, capacitor and inductor. In this paper, a smooth flux-controlled memristor is described by a monotone-increasing nonlinearity curve ... By replacing Chua's diode with an active memristor consisting of a smooth flux-controlled memristor and a negative conductance, a memristor based chaotic oscillation is derived from Chua's ... the equivalent circuit implementation form for the active memristor is designed by utilizing conventional components such as ...
Tópico(s): Neural Networks Stability and Synchronization
2011 - Science Press | Acta Physica Sinica
Shiping Wen, Zhigang Zeng, Tingwen Huang,
... paper investigates the exponential stability problem about the memristor-based recurrent neural networks. Having more rich dynamic behaviors, neural networks based on the memristor will play a key role in the optimistic computation and associative memory, therefore, stability analysis of memristor-based neural networks are quite important. Based on the knowledge of memristor and recurrent neural network, the model of the memristor-based recurrent neural networks is established; and the stability of memristor-based neural networks with time-varying delays is ...
Tópico(s): Distributed Control Multi-Agent Systems
2012 - Elsevier BV | Neurocomputing
Phil Knag, Wei Lü, Zhengya Zhang,
A two-terminal memristor device is a promising digital memory for its high integration density, substantially lower energy consumption compared to CMOS, and scalability below 10 nm. However, a nanoscale memristor is an inherently stochastic device, and extra energy ... required to make a deterministic memory based on memristors. Instead of enforcing deterministic storage, we take advantage ... can be implemented as a hybrid integration of memristor memory and simple CMOS stochastic computing circuits. We ...
Tópico(s): Neural dynamics and brain function
2014 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Nanotechnology
Jeyavijayan Rajendran, Ramesh Karri, Garrett S. Rose,
Memristors are being explored for a wide variety of applications such as neuromorphic computing, memory and digital ... variation in thickness, is highly non-linear on memristors; the effect is greater near the lower memristance ... this work, we propose a technique called parallel memristors. In this technique, instead of using a single memristor, the application uses several memristors connected in parallel. Each memristor in this parallel structure is programmed to a higher memristance value to tolerate variations. Since many memristors are connected in parallel, the effective memristance value ...
Tópico(s): Neuroscience and Neural Engineering
2014 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Computers
Anup Shrivastava, Muhammad Khalid, Komal Singh, Jawar Singh,
Memristor as a novel and emerging electronic device having vast range of applications suffer from poor frequency ... novel and an innovative device structure for the memristor with two active layers and its non-linear ... characteristics for the proposed model with the conventional memristors and found better results in each case (different window functions) for the proposed dual sided doped memristor. For circuit level simulation, they developed a SPICE model of the proposed memristor and designed some logic gates based on hybrid ...
Tópico(s): Ferroelectric and Negative Capacitance Devices
2014 - Institution of Engineering and Technology | The Journal of Engineering
Shahar Kvatinsky, Д. Р. Белоусов, Slavik Liman, Guy Satat, Nimrod Wald, Eby G. Friedman, Avinoam Kolodny, Uri Weiser,
Memristors are passive components with a varying resistance that depends on the previous voltage applied across the device. While memristors are naturally used as memory, memristors can also be used for other applications, including logic circuits. In this brief, a memristor-only logic family, i.e., memristor-aided logic (MAGIC), is presented. In each MAGIC logic gate, memristors serve as an input with previously stored data, and an additional memristor serves as an output. The topology of a ... is similar to the structure of a common memristor-based crossbar memory array. A MAGIC nor gate ...
Tópico(s): Photoreceptor and optogenetics research
2014 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Circuits & Systems II Express Briefs
Ram Kaji Budhathoki, Maheshwar Pd. Sah, Changju Yang, Hyongsuk Kim, Leon O. Chua,
Memristor, a new electrical element, can have various configurations of multiple memristors, including serial and parallel connections like previous elements ... current is supplied to a circuit with multiple memristors, the composite behavior of the memristor circuit exhibits transient states before it enters a ... very complex and not predictable due to each memristor's different action depending upon its connection polarity ... this paper, the transient characteristics of a composite memristor are analyzed via the relationships of charge, flux ...
Tópico(s): stochastic dynamics and bifurcation
2014 - World Scientific | International Journal of Bifurcation and Chaos
Zhekang Dong, Shukai Duan, Xiaofang Hu, Lidan Wang,
The memristor is a novel kind of electronic device with dynamic variable resistance that is dependent on the past ... voltage. As the fourth fundamental circuit element, the memristor captures a number of unique properties that have ... system. Additionally, compared with a circuit of single memristor, series-parallel circuit of memristors possesses more abundant device characteristics which arouses increasingly ... closed-form charge-governed and flux-governed HP memristor nonlinear models are presented with constructive procedures. In ...
Tópico(s): stochastic dynamics and bifurcation
2014 - Science Press | Acta Physica Sinica
Son Ngoc Truong, Seok-Jin Ham, Kyeong‐Sik Min,
... this paper, a neuromorphic crossbar circuit with binary memristors is proposed for speech recognition. The binary memristors which are based on filamentary-switching mechanism can ... and are easy to be fabricated than analog memristors that are rare in materials and need a ... a neuromorphic crossbar circuit using filamentary-switching binary memristors not using interface-switching analog memristors. The proposed binary memristor crossbar can recognize five vowels with 4-bit ... statistical simulation, the recognition rate of the binary memristor crossbar is estimated to be degraded very little ...
Tópico(s): Neuroscience and Neural Engineering
2014 - Springer Science+Business Media | Nanoscale Research Letters
Felix Messerschmitt, Markus Kubicek, Sebastian Schweiger, Jennifer L. M. Rupp,
Memristors based on mixed anionic‐electronic conducting oxides are promising devices for future data storage and information ... Unlike transistors solely operating on electronic carriers, these memristors rely, in their switch characteristics, on defect kinetics ... complimentary insights into material‐dependent diffusion characteristics of memristors. For example, capacitive, memristive and limiting currents towards the equilibrium state can successfully be separated. The memristor‐based Cottrell analysis is proposed to study diffusion ...
Tópico(s): Neuroscience and Neural Engineering
2014 - Wiley | Advanced Functional Materials
... can be recast into the equations of dissipative memristor circuits. In these memristor circuits, the Hamiltonians can be obtained from the ... of conservation of "energy". Furthermore, the dynamics of memristor circuits can be recast into the dynamics of "ideal memristor" circuits. We also show that nonlinear capacitors are transformed into nonideal memristors if an exponential coordinate transformation is applied. Furthermore, ... zero-crossing phenomenon does not occur in some memristor circuits because the trajectories do not intersect the ...
Tópico(s): stochastic dynamics and bifurcation
2014 - World Scientific | International Journal of Bifurcation and Chaos
Hu Feng-Wei, Bocheng Bao, Huagan Wu, Chunli Wang,
Memristor realized physically is recently a basic two-terminal circuit element with memory property. Based on Taylor ... form of φ-q relationship, a charge-controlled memristor equivalent circuit analysis model is built. A charge-controlled memristor model with cubic nonlinearity is taken, as an ... property, and so on, of the charge-controlled memristor with different parameters. Results indicate that the voltage-current relationship of the charge-controlled memristor has an italic “8” shaped hysteresis loop characteristic, ...
Tópico(s): CCD and CMOS Imaging Sensors
2013 - Science Press | Acta Physica Sinica
Teresa Serrano‐Gotarredona, Timothée Masquelier, Themistoklis Prodromakis, Giacomo Indiveri, B. Linares-Barranco,
... realizing asynchronous Spike-Timing Dependent Plasticity (STDP) using memristors as synapses. Our focus is on how to use individual memristors to implement synaptic weight multiplications, in a way ... a) introduce global synchronization and (b) to separate memristor learning phases from memristor performing phases. In the approaches described, neurons fire ... biological neural systems. We distinguish between two different memristor physics, depending on whether they respond to the ... filament creation and annihilation'' models. Independent of the memristor physics, we discuss two different types of STDP ...
Tópico(s): Photoreceptor and optogenetics research
2013 - Frontiers Media | Frontiers in Neuroscience
Baker Mohammad, Dirar Homouz, Hazem Elgabra,
In this paper, we explore various aspects of memristor modeling and use them to propose improved access operations and design of a memristor-based memory. We study the current mathematical and SPICE modeling of memristors and compare them with known device specifications. Based ... we adopt an improved mathematical model of the memristor that captures the well-established features of memristive ... the device modeling, we propose a hybrid CMOS-memristor memory cell and architecture that addresses the limitations ...
Tópico(s): Ferroelectric and Negative Capacitance Devices
2013 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Very Large Scale Integration (VLSI) Systems
From a pedagogical point of view, the memristor is defined in this tutorial as any 2-terminal device obeying a state-dependent Ohm's law. This tutorial also shows that from an experimental point of view, the memristor can be defined as any 2-terminal device ... the v–i plane. It also shows that memristors endowed with a continuum of equilibrium states can ... non-volatile analog memories. This tutorial shows that memristors span a much broader vista of complex phenomena ... including neurobiology. In particular, this tutorial presents toy memristors that can mimic the classic habituation and LTP ...
Tópico(s): Neuroscience and Neural Engineering
2013 - IOP Publishing | Nanotechnology
Alon Ascoli, Fernando Corinto, Vanessa Senger, Ronald Tetzlaff,
Since the 2008-dated discovery of memristor behavior at the nano-scale, Hewlett Packard is credited for, a large deal of efforts have been spent in the research community ... adopted for the investigation of the unique opportunities memristors may offer in integrated circuit design. In order ... this paper compares some of the most noteworthy memristor models present in the literature. The strength of ... describe some physical mechanism at the origin of memristor dynamics. Since its parameter values depend on the ...
Tópico(s): Neural dynamics and brain function
2013 - Institute of Electrical and Electronics Engineers | IEEE Circuits and Systems Magazine
Dongqing Liu, Haifeng Cheng, Xuan Zhu, Guang Wang, Nannan Wang,
We developed an analog memristor based on the thickening/thinning of Ag nanofilaments in amorphous La(1-x)Sr(x)MnO3 (a-LSMO) thin films. The Ag/a-LSMO/Pt memristor exhibited excellent pinched hysteresis loops under high-excitation ... frequency, which is a characteristic typical of a memristor. The memristor also showed continuously tunable synapselike resistance and stable endurance. The a-LSMO thin films in the memristor acted as a solid electrolyte for Ag(+) cations, and only the Ag/a-LSMO/Pt memristor electroformed with a larger current compliance easily exhibited ...
Tópico(s): Transition Metal Oxide Nanomaterials
2013 - American Chemical Society | ACS Applied Materials & Interfaces
Shahar Kvatinsky, Eby G. Friedman, Avinoam Kolodny, Uri Weiser,
Memristors are two-terminal devices with varying resistance, where the behavior is dependent on the history of ... been linked with the theoretical concept of a memristor, and several emerging memory devices (e.g., Phase ... Resistive RAM, STT-MRAM) are now considered as memristors. Memristors hold promise for use in diverse applications such ... analog circuits, and neuromorphic systems. Important characteristics of memristors include high speed, low power, good scalability, data ... and operating voltages. One interesting property of some memristors is a nonlinear response to current or voltage. ...
Tópico(s): Neuroscience and Neural Engineering
2013 - Institute of Electrical and Electronics Engineers | IEEE Circuits and Systems Magazine
... Bioinspired technologyFree Access Determining optimal switching speed for memristors in neuromorphic system C. Yakopcic, Corresponding Author C. ... memory based on resistive switching becomes more mature, memristor devices with very fast switching times are becoming more prominent. However, this reported work shows that memristor devices with slow switching times (of about 10 ... This is done by modelling a series of memristors that differ in their switching time. Simulation of a memristor-based neuromorphic circuit is performed using each of ...
Tópico(s): CCD and CMOS Imaging Sensors
2015 - Institution of Engineering and Technology | Electronics Letters
Mika Laiho, Jennifer Hasler, Jiantao Zhou, Chao Du, Wei Lü, Eero Lehtonen, Jussi Poikonen,
... a circuit in which tungsten oxide -based analog memristors are post-processed on a CMOS-based Field- ... introduce and demonstrate the operation of the FPAA/memristor hybrid circuit and the board-level infrastructure, and ... in this paper demonstrate a successful fabrication of memristors on the FPAA substrate, and the usefulness of ... hybrid computing infrastructure in terms of experimentation with memristors. The experiments suggest that a single state variable cannot capture the adaptation of a memristor. To this end, a SPICE compatible memristor model ...
Tópico(s): Neural dynamics and brain function
2015 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Circuits and Systems I Regular Papers
A memristor is a nonlinear resistor with time memory. The resistance of a classical memristor at a given time is represented by the ... on this observation, a fractional-order HP TiO2 memristor model with the order between 0 and 1 ... bigger than 1, the memory strength of the memristor takes its maximal value when the order is ... one-port circuit composed of the fractional-order memristor and the capacitor, or composed of the fractional-order memristor and the inductor are studied separately. Results demonstrate ...
Tópico(s): Neural Networks Stability and Synchronization
2015 - Science Press | Acta Physica Sinica
Byung Joon Choi, Jiaming Zhang, Kate J. Norris, Gary A. P. Gibson, Kyung Min Kim, Warren B. Jackson, Min‐Xian Max Zhang, Zhiyong Li, J. Joshua Yang, R. Stanley Williams,
... die (>100 Gbit cm–2), resistance switches, or memristors, need to be connected together in large arrays ... density of a NVM die. Thus, unless the memristor itself has a large intrinsic nonlinear current–voltage ( ... selector can be a diode, but for bipolar memristors, the selector needs to have a large and ... selectors with a scalability comparable to that of memristors are essential to realize the large array sizes ... be significantly greater than that of its companion memristor because the selector should be turned ON not ...
Tópico(s): Semiconductor materials and devices
2015 - | Advanced Materials
Shahar Kvatinsky, M. Nisvo Ramadan, Eby G. Friedman, Avinoam Kolodny,
Memristors are novel electrical devices used for a variety of applications, including memory, logic circuits, and neuromorphic ... existence of a threshold voltage in some physical memristors. Additionally, as shown in this brief, some applications require voltage-controlled memristors to operate properly. In this brief, a Voltage ThrEshold Adaptive Memristor (VTEAM) model is proposed to describe the behavior of voltage-controlled memristors. The VTEAM model extends the previously proposed ThrEshold ...
Tópico(s): Ferroelectric and Negative Capacitance Devices
2015 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Circuits & Systems II Express Briefs
Sachhidh Kannan, Naghmeh Karimi, Ramesh Karri, Ozgur Sinanoglu,
Memristors are an attractive option for use in future memory architectures but are prone to high defect ... nondeterministic nature of nanoscale fabrication. Several works discuss memristor fault models and testing. However, none of them considers the memristor as a multilevel cell (MLC). The ability of memristors to function as an MLC allows for extremely dense, low-power memories. Using a memristor as an MLC introduces fault mechanisms that cannot ... In this paper, we develop fault models for memristor-based MLC crossbars. The typical approach to testing ...
Tópico(s): Neuroscience and Neural Engineering
2015 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Lei Wang, Cihui Yang, Jing Wen, Shan Gai, Yuan-Xiu Peng,
Memristor is a fundamental circuit element in addition to resistor, capacitor, and inductor. As it can remember its resistance state even encountering a power off, memristor has recently received widespread applications from non-volatile memory to neural networks. The current memristor family mainly comprises resistive memristor, polymeric memristor, ferroelectric memristor, manganite memristor, resonant-tunneling diode memristor, and spintronic ...
Tópico(s): Neuroscience and Neural Engineering
2015 - Springer Science+Business Media | Journal of Materials Science Materials in Electronics
Junwei Sun, Lina Yao, Xuncai Zhang, Yanfeng Wang, Guangzhao Cui,
To qualify as a memristor, the pinched hysteresis loop of a dynamical system corresponding to a sinusoidal excitation signal must be pinched at the origin, ... of the judgment, a generalised mathematical model of memristor is designed in the study, which confirms three fingerprints of memristor. HP memristor, piecewise-linear memristor, memristor with square non-linearity and memristor with cubic non-linearity are included as generalised memristor model special cases. The generalised mathematical model of ...
Tópico(s): Neural Networks Stability and Synchronization
2016 - Institution of Engineering and Technology | IET Circuits Devices & Systems
Xiao Yang, Wanlong Chen, Frank Z. Wang,
The memristor is postulated by Chua (IEEE Trans Circuit Theory, 18(5):507–519, 1971) as the fourth fundamental ... as high density. In this paper, the staircase memristor model is discussed and investigated with the HP memristor model. By connecting HP memristor models in series or parallel, a staircase memristor model could be constructed and demonstrate staircase behavior. By comparing the staircase memristor model to the general HP memristor model, distinctions between them are demonstrated and this ...
Tópico(s): Neural Networks Stability and Synchronization
2016 - Springer Science+Business Media | Analog Integrated Circuits and Signal Processing