TITLE

Study of multi-ON states in nonvolatile memory based on metal-insulator-metal structure

AUTHOR(S)
Yang, Guanwen; Chen, Hsiang-Yu; Ma, Liping; Shao, Yue; Yang, Yang
PUB. DATE
November 2009
SOURCE
Applied Physics Letters;11/16/2009, Vol. 95 Issue 20, p203506
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Various mechanisms have been proposed to interpret switching effect in thermally evaporated organic memory devices. In this work, we demonstrate a nonvolatile memory device having tristates, one OFF state and two different ON states (lower-ON state, higher-ON state) in the metal-insulator-metal (MIM) structure. Detailed study has revealed that different switching mechanisms are responsible for these two stages of switching: filament formation is the dominant mechanism for switching from the OFF state to the lower ON state while Poole–Frenkel effect governs the switching from the lower-ON state to the higher-ON state.
ACCESSION #
45366486

 

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