Reconfigurable Resistive Switching in VO2/La0.7Sr0.3MnO3/Al2O3 (0001) Memristive Devices for Neuromorphic Computing
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.This study presents dual resistive switching modes in VO2/LSMO memristive devices, enabling flexible emulation of brain functions. These devices offer a path towards low-power, high-density neuromorphic computing and avoid sneak-path currents.
Area Of Science
- Materials Science
- Neuroscience
- Electrical Engineering
Background
- Memristive devices are crucial for emulating brain functions like neurons and synapses.
- Integrating nonvolatile and volatile switching modes in a single device simplifies neuromorphic architectures.
- Transistor-based selectors in memristive networks increase power consumption and reduce integration density.
Purpose Of The Study
- To report dual resistive switching (RS) modes in VO2/LSMO bilayer memristive devices.
- To demonstrate the potential for creating low-power, high-density memristive spiking neural networks.
- To explore the application of these devices in neuromorphic computing and memristive crossbar arrays.
Main Methods
- Fabrication of VO2/La0.7Sr0.3MnO3 (LSMO) bilayer memristive devices.
- Electrical characterization to identify and differentiate nonvolatile and volatile resistive switching mechanisms.
- Analysis of the role of oxygen vacancies and the metal-insulator transition (MIT) in controlling RS modes.
Main Results
- Demonstrated coexistence of nonvolatile (oxygen vacancy-driven) and volatile (VO2 MIT-driven) RS modes in a single device.
- Achieved electrical switching between the two RS modes, enabling 1 selector-1 resistor (1S1R) cell functionality.
- Confirmed stability and repeatability of both RS modes, reconfigurable via interfacial and phase transition properties.
Conclusions
- The VO2/LSMO bilayer memristive devices exhibit dual RS modes suitable for advanced neuromorphic applications.
- The 1S1R cell capability addresses sneak-path current issues in memristive crossbar arrays.
- These findings pave the way for efficient, high-density memristive neural networks and neuromorphic computing systems.
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
Related Concept Videos
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...