Stimulated Ionic Telegraph Noise in Filamentary Memristive Devices.

ABSTRACT: Random telegraph noise is a widely investigated phenomenon affecting the reliability of the reading operation of the class of memristive devices whose operation relies on formation and dissolution of conductive filaments. The trap and the release of electrons into and from defects surrounding the filament produce current fluctuations at low read voltages. In this work, telegraphic resistance variations are intentionally stimulated through pulse trains in HfO₂-based memristive devices. The stimulated noise results from the re-arrangement of ionic defects constituting the filament responsible for the switching. Therefore, the stimulated noise has an ionic origin in contrast to the electronic nature of conventional telegraph noise. The stimulated noise is interpreted as raising fro

SUBMITTER: Brivio S 

PROVIDER: S-EPMC6465356 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature