Structural instability of one-dimensional systems as a physical principle underlying the functioning of molecular electronic devices

Structural instability of one-dimensional conducting molecular systems is suggested as a physical principle underlying the operation of molecular electronic devices, and its potential application in such devices is analyzed. The theoretical basis of this effect is discussed. The conditions and parameters determining its characteristics are analyzed from the viewpoint of molecular electronics. Data on one-dimensional molecular structures which are of interest for the design of electronic devices are given. Peculiarities of structural instability are discussed, and potential static and dynamic control over the conductivity of one-dimensional systems is analyzed. Molecular structures are given as examples of hypothetical electronic devices. The possibilities and prospects of this approach in the development of molecular electronics are discussed.