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Related Experiment Video

Updated: Sep 28, 2025

Gradient Echo Quantum Memory in Warm Atomic Vapor
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Gradient Echo Quantum Memory in Warm Atomic Vapor

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Atomic scale memristive photon source.

Bojun Cheng1, Till Zellweger2, Konstantin Malchow3

  • 1ETH Zurich, Institute of Electromagnetic Fields, Zurich, 8092, Switzerland. bojun.cheng@ief.ee.ethz.ch.

Light, Science & Applications
|March 30, 2022
PubMed
Summary

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This summary is machine-generated.

New memristive devices exhibit atomic-scale light emission during switching. This discovery in silver/amorphous-silicon-oxide/platinum memristors could lead to novel light sources for neuromorphic computing and quantum communication.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Solid State Physics

Background:

  • Memristive devices, operating at the atomic scale, are crucial for advanced computing.
  • Ag/amorphous-SiOx/Pt memristors are well-studied for their storage and in-memory computing capabilities.
  • Electrically induced filament dynamics in these devices are extensively researched.

Purpose of the Study:

  • To investigate novel phenomena in Ag/amorphous-SiOx/Pt memristors beyond their known electrical characteristics.
  • To explore the potential for light emission from memristive switching events.

Main Methods:

  • Fabrication and electrical characterization of Ag/amorphous-SiOx/Pt memristive devices.
  • Observation and analysis of photoluminescence spectra correlated with memristive switching.

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  • Investigation of the relationship between conductance changes and photon emission.

    • Main Results:

    • Observation of new photoluminescent centers in amorphous-SiOx following memristive switching.
    • Correlation between photon emission and changes in device conductance.
    • Demonstration of light emission intrinsically linked to memristive behavior.

    Conclusions:

    • Memristive switching in Ag/amorphous-SiOx/Pt devices can induce photoluminescence.
    • This phenomenon suggests the development of intrinsically memristive atomic-scale light sources.
    • Potential applications include neural networks, optical interconnects, and quantum communication.