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Fast polaron switching in degenerate molecular quantum dots

A. S. Alexandrov·A. M. Bratkovsky
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Abstract

Devices for nano- and molecular size electronics are currently a focus of research aimed at an efficient current rectification and switching. Current switching due to conformational changes in the molecules is slow, on the order of a few kHz. Fast switching on the order of 1 THz may be achieved, at least in principle, in a degenerate molecular quantum dot with strong coupling of electrons with vibrational excitations. We show that the mean-field approach fails to properly describe intrinsic molecular switching and present an exact solution to the problem.

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A. S. Alexandrov, A. M. Bratkovsky. 2006-10-02. Fast polaron switching in degenerate molecular quantum dots. https://doi.org/10.1088/0953-8984%2F19%2F25%2F255203

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