NbOx based memristor as artificial synapse emulating short term plasticity

Memristors can mimic the functions of biological synapse, where it can simultaneously store the synaptic weight and modulate the transmitted signal. Here, we report Nb/Nb2O5/Pt based memristors with bipolar resistive switching, exhibiting synapse like property of gradual and continuously change of c...

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Published in:AIP advances 2019-09, Vol.9 (9), p.095022-095022-5
Main Authors: Deswal, Sweety, Kumar, Ashok, Kumar, Ajeet
Format: Article
Language:English
Subjects:
Biological activity
Memristors
Niobium oxides
Plastic properties
Resistance
Short term
Signal processing
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description Memristors can mimic the functions of biological synapse, where it can simultaneously store the synaptic weight and modulate the transmitted signal. Here, we report Nb/Nb2O5/Pt based memristors with bipolar resistive switching, exhibiting synapse like property of gradual and continuously change of conductance with subsequent voltage signals. Mimicking of basic functions of remembering and forgetting processes of biological brain were demonstrated through short term plasticity, spike rate dependent plasticity, paired pulse facilitation and post-titanic potentiation. The device layer interface tuning was shown to affect the device properties shift from digital to analog behaviour. Demonstration of basic synaptic functions in the NbOx based devices makes them suitable for neuromorphic applications.
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subjects Biological activity
Memristors
Niobium oxides
Plastic properties
Resistance
Short term
Signal processing
title NbOx based memristor as artificial synapse emulating short term plasticity
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