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Nanoelectronic programmable synapses based on phase change materials for brain-inspired computing.

Authors
Type
Published Article
Journal
Nano Letters
1530-6992
Publisher
American Chemical Society
Publication Date
Volume
12
Issue
5
Pages
2179–2186
Identifiers
DOI: 10.1021/nl201040y
PMID: 21668029
Source
Medline

Abstract

Brain-inspired computing is an emerging field, which aims to extend the capabilities of information technology beyond digital logic. A compact nanoscale device, emulating biological synapses, is needed as the building block for brain-like computational systems. Here, we report a new nanoscale electronic synapse based on technologically mature phase change materials employed in optical data storage and nonvolatile memory applications. We utilize continuous resistance transitions in phase change materials to mimic the analog nature of biological synapses, enabling the implementation of a synaptic learning rule. We demonstrate different forms of spike-timing-dependent plasticity using the same nanoscale synapse with picojoule level energy consumption.

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