Elsevier

Solid-State Electronics

Volume 18, Issues 7–8, July–August 1975, Pages 671-681
Solid-State Electronics

The effect of local non-uniformities on thermal switching and high field behaviour of structures with chalcogenide glasses

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Abstract

A refinement of the theory of thermal switching is presented which takes into account local defects (pre-existing or built-in during the forming process). The contribution of these local defects in reducing the filament temperature is calculated.

When high-field non-ohmic effects are also included in the theory, some switching phenomena can be explained, which were not considered as thermal, and in which the average dissipation is no longer a significant factor.

It is also shown that the presence of local defects may have significantly altered the available information concerning very steep high field behaviours in chalcogenide glasses.

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