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The tunneling resistances of monolayers and bilayers of n-alkanethiols in macroscopic Hg–Hg junctions with an electrochemical gate are reported. The resistances near zero bias calculated per 1 hydrocarbon chain vary from (5±4)×10 12 Ω for n-nonanethiol to (4±2)×10 16 Ω for n-octadecanethiol. These values indicate that monolayers of hydrocarbons in Hg–Hg junctions are substantially...
We present a theory of tunneling and resonant transitions in one-dimensional molecular systems which is based on Green’s function theory of electron sub-barrier scattering off the structural units (or functional groups) of a molecular chain. We show that the many-electron effects are of paramount importance in electron transport and they are effectively treated using a formalism of sub-barrier scattering...
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