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Experimental evidence of filament “forming” in non-crystalline chalcogenide alloy threshold switches

Authors
Journal
Journal of Non-Crystalline Solids
0022-3093
Publisher
Elsevier
Publication Date
Volume
6
Issue
2
Identifiers
DOI: 10.1016/0022-3093(71)90049-4

Abstract

Abstract The results of quantitative electrical measurements on threshold switching devices fabricated by photoengraving techniques from non-crystalline chalcogenide alloy thin films are presented. An electrical forming process is observed prior to the establishment of a stable switching characteristic, and the results are used to demonstrate that the actual threshold switching occurs in a filament produced during this forming process, with a much higher conductivity than the as-deposited thin film. The implications of these observations for theories of switching are discussed.

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