Energy-Efficient Artificial Synapses Based on Oxide Tunnel Junctions.

07:00 EST 8th November 2019 | BioPortfolio

Summary of "Energy-Efficient Artificial Synapses Based on Oxide Tunnel Junctions."

The development of artificial synapses has enabled the establishment of brain-inspired computing systems, which provides a promising approach for overcoming the inherent limitations of current computer systems. The two-terminal memristors that faithfully mimic the function of biological synapses have intensive prospects in the neural network field. Here, we propose a high-performance artificial synapse based on oxide tunnel junctions with oxygen vacancy migration. Both short-term and long-term plasticities are mimicked in one device. The oxygen vacancy migration through oxide ultrathin films is utilized to manipulate long-term plasticity. Essential synaptic functions, such as paired pulse facilitation, post-tetanic potentiation, as well as spike-timing-dependent plasticity, are successfully implemented in one device by finely modifying the shape of the pre- and postsynaptic spikes. Ultralow femtojoule energy consumption comparable to that of the human brain indicates its potential application in efficient neuromorphic computing. Oxide tunnel junctions proposed in this work provide an alternative approach for realizing energy-efficient brain-like chips.


Journal Details

This article was published in the following journal.

Name: ACS applied materials & interfaces
ISSN: 1944-8252


DeepDyve research library

PubMed Articles [25400 Associated PubMed Articles listed on BioPortfolio]

Freestanding oxide ferroelectric tunnel junction memories transferred onto silicon.

Crystalline oxide ferroelectric tunnel junctions enable persistent encoding of information in electric polarization, featuring non-destructive readout and scalability that can exceed current commercia...

Giant Electroresistance in Ferroionic Tunnel Junctions.

Oxide-based resistive switching devices, including ferroelectric tunnel junctions and resistance random access memory, are promising candidates for the next-generation non-volatile memory technology. ...

Spin filtering in CrI tunnel junctions.

The recently discovered magnetism of two-dimensional (2D) van der Waals crystals have attracted a lot of attention. Among these materials is CrI3 - a magnetic semiconductor exhibiting transitions betw...

Two-Dimensional Material Tunnel Barrier for Josephson Junctions and Superconducting Qubits.

Quantum computing based on superconducting qubits requires the understanding and control of the materials, device architecture, and operation. However, the materials for the central circuit element, t...

Flexible memristors based on single-crystalline ferroelectric tunnel junctions.

Ferroelectric tunnel junction (FTJ) based memristors exhibiting continuously electric field controllable resistance states have been considered as the promising candidate for future high-density memor...

Clinical Trials [7210 Associated Clinical Trials listed on BioPortfolio]

Effects of Platelet-rich Plasma in the Surgery of Carpal Tunnel Syndrome: A Randomized Controlled Trial

The Platelet-rich plasma (PRP) has been proved to be efficient in the non-surgical treatment of carpal tunnel syndrome (CTS). Here we propose to assess the effectiveness of PRP as co-adjuv...

The Use of Ultrasound to Quantify Muscle Overlying the Carpal Tunnel

Carpal tunnel syndrome (CTS) is a common condition that still lacks a reliable, objective screening test. Many anatomical aspects of the syndrome have been studied including the dimensions...

Mild Carpal Tunnel Syndrome

Carpal tunnel syndrome (CTS) is the most common peripheral nerve entrapment. Diagnosis is based on symptoms, clinical findings and electrophysiological examination. Several conservative an...

Short and Long Term Exposure to Unique, Time-Varying Pulsed Electro-Magnetic Fields in Refractory Carpal Tunnel Syndrome

Pulsed electromagnetic fields (PEMF) have been approved by FDA and are utilized currently in treating non-union fractures, neurogenic bladder and musculoskeletal pains. Based on 2 prior p...

Nitric Oxide During Bypass for Arterial Switch Operation

This trial will test if adding nitric oxide (NO) gas to the cardiopulmonary bypass (CPB) circuit in infants undergoing an arterial switch operation (ASO) for Transposition of the Great Art...

Medical and Biotech [MESH] Definitions

Specialized junctions at which a neuron communicates with a target cell. At classical synapses, a neuron's presynaptic terminal releases a chemical transmitter stored in synaptic vesicles which diffuses across a narrow synaptic cleft and activates receptors on the postsynaptic membrane of the target cell. The target may be a dendrite, cell body, or axon of another neuron, or a specialized region of a muscle or secretory cell. Neurons may also communicate via direct electrical coupling with ELECTRICAL SYNAPSES. Several other non-synaptic chemical or electric signal transmitting processes occur via extracellular mediated interactions.

Specialized junctions between NEURONS which connect the cytoplasm of one neuron to another allowing direct passage of an ion current.

Connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of CONNEXINS, the family of proteins which form the junctions.

The synapse between a neuron (presynaptic) and an effector cell other than another neuron (postsynaptic). Neuroeffector junctions include synapses onto muscles and onto secretory cells.

The interfaces between T-CELLS and ANTIGEN-PRESENTING CELLS. Supramolecular organization of proteins takes place at these synapses involving various types of immune cells. Immunological synapses can have several functions including LYMPHOCYTE ACTIVATION; enhancing, balancing, or terminating signaling; or directing cytokine secretion.

Quick Search

DeepDyve research library

Relevant Topic

Biological Therapy
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...

Searches Linking to this Article