This article is cited in 6 papers

Metals

Influence of parameters of the potential barrier at the metal/polymer interface on the electronic switching in the metal/polymer/metal structure

I. R. Nabiullin^a, A. N. Lachinov^a, A. F. Ponomarev<sup>b

a</sup> Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences
^b Birsk State Socio-Pedagogical Academy

Abstract: The influence of the first-order phase transition on the parameters of the potential barrier at the indium/polymer interface has been investigated. It has been established that the phase transition occurring in the metal initiates switching of the polymer insulator into a high-conductivity state. Performed investigations have shown that the main charge transfer mechanism in the metal-polymer-metal structure at high temperatures is the current caused by the electron thermionic emission. The analysis of current-voltage characteristics has demonstrated that the first-order phase transition in indium leads to the variation in the potential barrier height at the metal/polymer interface by $\Delta\varphi\approx$ 0.18 eV. It is this phenomenon that is responsible for the electronic switching.

Received: 20.06.2011

 English version: Physics of the Solid State, 2012, 54:2, 243–247

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