Nanosecond resistive switching in Ag/AgI/PtIr nanojunctions

Nanometer-scale resistive switching devices operated in the metallic conductance regime offer ultimately scalable and widely reconfigurable hardware elements for novel in-memory and neuromorphic computing architectures. Moreover, they exhibit high operation speed at low power arising from the ease o...

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Main Authors: Botond Sánta, Dániel Molnár, Patrick Haiber, Agnes Gubicza, Edit Szilágyi, Zsolt Zolnai, András Halbritter, Miklós Csontos
Format: Article
Language:English
Published: Beilstein-Institut 2020-01-01
Series:Beilstein Journal of Nanotechnology
Subjects:
Online Access:https://doi.org/10.3762/bjnano.11.9
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author Botond Sánta
Dániel Molnár
Patrick Haiber
Agnes Gubicza
Edit Szilágyi
Zsolt Zolnai
András Halbritter
Miklós Csontos
author_facet Botond Sánta
Dániel Molnár
Patrick Haiber
Agnes Gubicza
Edit Szilágyi
Zsolt Zolnai
András Halbritter
Miklós Csontos
author_sort Botond Sánta
collection DOAJ
description Nanometer-scale resistive switching devices operated in the metallic conductance regime offer ultimately scalable and widely reconfigurable hardware elements for novel in-memory and neuromorphic computing architectures. Moreover, they exhibit high operation speed at low power arising from the ease of the electric-field-driven redistribution of only a small amount of highly mobile ionic species upon resistive switching. We investigate the memristive behavior of a so-far less explored representative of this class, the Ag/AgI material system in a point contact arrangement established by the conducting PtIr tip of a scanning probe microscope. We demonstrate stable resistive switching duty cycles and investigate the dynamical aspects of non-volatile operation in detail. The high-speed switching capabilities are explored by a custom-designed microwave setup that enables time-resolved studies of subsequent set and reset transitions upon biasing the Ag/AgI/PtIr nanojunctions with sub-nanosecond voltage pulses. Our results demonstrate the potential of Ag-based filamentary memristive nanodevices to serve as the hardware elements in high-speed neuromorphic circuits.
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spelling doaj.art-0c34efc4831b4a308e698a06dc25726a2022-12-22T00:01:41ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862020-01-011119210010.3762/bjnano.11.92190-4286-11-9Nanosecond resistive switching in Ag/AgI/PtIr nanojunctionsBotond Sánta0Dániel Molnár1Patrick Haiber2Agnes Gubicza3Edit Szilágyi4Zsolt Zolnai5András Halbritter6Miklós Csontos7Department of Physics, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, HungaryDepartment of Physics, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, HungaryDepartment of Physics, University of Konstanz, Universitätstrasse 10, D-78464 Konstanz, GermanyDepartment of Physics, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, HungaryWigner Research Centre for Physics, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, HungaryCentre for Energy Research, Institute of Technical Physics and Materials Science, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, HungaryDepartment of Physics, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, HungaryDepartment of Physics, Budapest University of Technology and Economics, Budafoki út 8, H-1111 Budapest, HungaryNanometer-scale resistive switching devices operated in the metallic conductance regime offer ultimately scalable and widely reconfigurable hardware elements for novel in-memory and neuromorphic computing architectures. Moreover, they exhibit high operation speed at low power arising from the ease of the electric-field-driven redistribution of only a small amount of highly mobile ionic species upon resistive switching. We investigate the memristive behavior of a so-far less explored representative of this class, the Ag/AgI material system in a point contact arrangement established by the conducting PtIr tip of a scanning probe microscope. We demonstrate stable resistive switching duty cycles and investigate the dynamical aspects of non-volatile operation in detail. The high-speed switching capabilities are explored by a custom-designed microwave setup that enables time-resolved studies of subsequent set and reset transitions upon biasing the Ag/AgI/PtIr nanojunctions with sub-nanosecond voltage pulses. Our results demonstrate the potential of Ag-based filamentary memristive nanodevices to serve as the hardware elements in high-speed neuromorphic circuits.https://doi.org/10.3762/bjnano.11.9memristornanojunctionnanosecond operationresistive switchingsilver iodide (agi)
spellingShingle Botond Sánta
Dániel Molnár
Patrick Haiber
Agnes Gubicza
Edit Szilágyi
Zsolt Zolnai
András Halbritter
Miklós Csontos
Nanosecond resistive switching in Ag/AgI/PtIr nanojunctions
Beilstein Journal of Nanotechnology
memristor
nanojunction
nanosecond operation
resistive switching
silver iodide (agi)
title Nanosecond resistive switching in Ag/AgI/PtIr nanojunctions
title_full Nanosecond resistive switching in Ag/AgI/PtIr nanojunctions
title_fullStr Nanosecond resistive switching in Ag/AgI/PtIr nanojunctions
title_full_unstemmed Nanosecond resistive switching in Ag/AgI/PtIr nanojunctions
title_short Nanosecond resistive switching in Ag/AgI/PtIr nanojunctions
title_sort nanosecond resistive switching in ag agi ptir nanojunctions
topic memristor
nanojunction
nanosecond operation
resistive switching
silver iodide (agi)
url https://doi.org/10.3762/bjnano.11.9
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