Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field Description

Percolative memristive networks based on self-organized ensembles of silver and gold nanoparticles are synthesized and investigated. Using cyclic voltammetry, pulse and step voltage excitations, we study switching between memristive and capacitive states below the percolation threshold. The resultin...

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Main Authors: Renat T. Sibatov, Andrey I. Savitskiy, Pavel E. L’vov, Yulia O. Vasilevskaya, Evgeny P. Kitsyuk
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/13/14/2039
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author Renat T. Sibatov
Andrey I. Savitskiy
Pavel E. L’vov
Yulia O. Vasilevskaya
Evgeny P. Kitsyuk
author_facet Renat T. Sibatov
Andrey I. Savitskiy
Pavel E. L’vov
Yulia O. Vasilevskaya
Evgeny P. Kitsyuk
author_sort Renat T. Sibatov
collection DOAJ
description Percolative memristive networks based on self-organized ensembles of silver and gold nanoparticles are synthesized and investigated. Using cyclic voltammetry, pulse and step voltage excitations, we study switching between memristive and capacitive states below the percolation threshold. The resulting systems demonstrate scale-free (self-similar) temporal dynamics, long-term correlations, and synaptic plasticity. The observed plasticity can be manipulated in a controlled manner. The simplified stochastic model of resistance dynamics in memristive networks is testified. A phase field model based on the Cahn–Hilliard and Ginzburg–Landau equations is proposed to describe the dynamics of a self-organized network during the dissolution of filaments.
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spelling doaj.art-e0da4716e5ef4b94b7775dada1b39a682023-11-18T20:45:06ZengMDPI AGNanomaterials2079-49912023-07-011314203910.3390/nano13142039Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field DescriptionRenat T. Sibatov0Andrey I. Savitskiy1Pavel E. L’vov2Yulia O. Vasilevskaya3Evgeny P. Kitsyuk4Scientific-Manufacturing Complex “Technological Centre”, 124498 Moscow, RussiaScientific-Manufacturing Complex “Technological Centre”, 124498 Moscow, RussiaLaboratory of Diffusion Processes, Ulyanovsk State University, 432017 Ulyanovsk, RussiaScientific-Manufacturing Complex “Technological Centre”, 124498 Moscow, RussiaScientific-Manufacturing Complex “Technological Centre”, 124498 Moscow, RussiaPercolative memristive networks based on self-organized ensembles of silver and gold nanoparticles are synthesized and investigated. Using cyclic voltammetry, pulse and step voltage excitations, we study switching between memristive and capacitive states below the percolation threshold. The resulting systems demonstrate scale-free (self-similar) temporal dynamics, long-term correlations, and synaptic plasticity. The observed plasticity can be manipulated in a controlled manner. The simplified stochastic model of resistance dynamics in memristive networks is testified. A phase field model based on the Cahn–Hilliard and Ginzburg–Landau equations is proposed to describe the dynamics of a self-organized network during the dissolution of filaments.https://www.mdpi.com/2079-4991/13/14/2039memristive networksnanoparticlespercolationsynaptic plasticity
spellingShingle Renat T. Sibatov
Andrey I. Savitskiy
Pavel E. L’vov
Yulia O. Vasilevskaya
Evgeny P. Kitsyuk
Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field Description
Nanomaterials
memristive networks
nanoparticles
percolation
synaptic plasticity
title Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field Description
title_full Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field Description
title_fullStr Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field Description
title_full_unstemmed Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field Description
title_short Self-Organized Memristive Ensembles of Nanoparticles Below the Percolation Threshold: Switching Dynamics and Phase Field Description
title_sort self organized memristive ensembles of nanoparticles below the percolation threshold switching dynamics and phase field description
topic memristive networks
nanoparticles
percolation
synaptic plasticity
url https://www.mdpi.com/2079-4991/13/14/2039
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AT pavelelvov selforganizedmemristiveensemblesofnanoparticlesbelowthepercolationthresholdswitchingdynamicsandphasefielddescription
AT yuliaovasilevskaya selforganizedmemristiveensemblesofnanoparticlesbelowthepercolationthresholdswitchingdynamicsandphasefielddescription
AT evgenypkitsyuk selforganizedmemristiveensemblesofnanoparticlesbelowthepercolationthresholdswitchingdynamicsandphasefielddescription