Volatile and non-volatile resistive switching in Mott materials

ORAL

Abstract

Electrically-induced resistive switching offers new opportunities to emulate spiking neurons and plastic synapses for neuromorphic computing. Examples of materials exhibiting such behavior include several vanadium oxides, correlated nickelates, titanium dioxide, and many more. Manipulating the resistive switching properties of these oxides and modifying their transport properties are crucial for the development of future oxide electronics. In this work, we investigated the switching mechanisms behind volatile and non-volatile resistive switching in Mott materials, mainly focusing on vanadium oxides. The metal-insulator transition properties of the conductive filament and its nanoscale lattice structure will be discussed. Our study offers new insight into which mechanism dominates the switching process: electroforming or metal-insulator transition.

*Work supported by the Quantum Materials for Energy Efficient Neuromorphic Computing (Q-MEEN-C) Energy Frontier Research Center (EFRC), funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award DE-SC0019273.

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Presenters

  • Minhan Lee

    • University of California, San Diego

Authors

  • Minhan Lee

    • University of California, San Diego

  • Shaobo Cheng

    • Canadian Centre for Electron Microscopy and Department of Materials Science and Engineering, McMaster University
    • Condensed Matter Physics and Materials Science Division, Brookhaven National Laboratory
    • Brookhaven National Laboratory

  • Coline Adda

    • University of California, San Diego
    • Department of Physics, University of California, San Diego
    • Department of Physics, University of California San Diego

  • Javier del Valle

    • University of California, San Diego

  • Yimei Zhu

    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Division, Brookhaven National Laboratory
    • Condensed Matter Physics & Materials Science Department, Brookhaven National Lab
    • Condensed Matter Physics & Materials Science Department, Brookhaven National Laboratory
    • Condensed Matter Physics, Brookhaven National Laboratory

  • Ivan Schuller

    • University of California, San Diego
    • Dept. of Physics and Center for Advanced Nanoscience, UCSD, La Jolla, CA, USA
    • Physics Department, University of California, San Diego
    • Department of Physics, University of California, San Diego