Resistive switching characteristics of maghemite nanoparticle assembly on Al and Pt electrodes on a flexible substrate

Resistive switching characteristics of maghemite (γ-Fe2O3) nanoparticle assembly were investigated in structures of top-electrode (Al,Pt)/γ-Fe2O3-NPs (∼ 30 nm-thick)/bottom electrode (Al,Pt) on a flexible polyethersulfone substrate. The assembled NP layer with Al electrodes showed both unipolar and...

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Published in:Journal of physics. D, Applied physics Applied physics, 2012-06, Vol.45 (22), p.225304-1-8
Main Authors: Yoo, Jae Woo, Hu, Quanli, Baek, Yoon-Jae, Choi, Young Jin, Kang, Chi Jung, Lee, Hyun Ho, Lee, Do-Joong, Kim, Hyun-Mi, Kim, Ki-Bum, Yoon, Tae-Sik
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Language:English
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Aluminum
maghemite nanoparticle
memristor
resistive switching
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container_title Journal of physics. D, Applied physics
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creator Yoo, Jae Woo
Hu, Quanli
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Yoon, Tae-Sik
description Resistive switching characteristics of maghemite (γ-Fe2O3) nanoparticle assembly were investigated in structures of top-electrode (Al,Pt)/γ-Fe2O3-NPs (∼ 30 nm-thick)/bottom electrode (Al,Pt) on a flexible polyethersulfone substrate. The assembled NP layer with Al electrodes showed both unipolar and bipolar switchings with abrupt resistance change in multiple levels associated with formation and sequential rupture of conducting filaments, which is ascribed to Fe enrichment by the interfacial reaction. On the other hand, the NP layer with Pt electrodes exhibited memristive switching with hysteresis in current-voltage characteristics dependent on bias polarity, gradually changing the resistance with respect to bias conditions, and preserved resistance until a new state was developed by subsequent biasing.
doi_str_mv 10.1088/0022-3727/45/22/225304
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subjects Aluminum
maghemite nanoparticle
memristor
resistive switching
title Resistive switching characteristics of maghemite nanoparticle assembly on Al and Pt electrodes on a flexible substrate
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