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Complex-band structure: a method to determine the off-resonant electron transport in oligomers

Fagas, Giorgos ; Kambili, Agapi ; Elstner, Marcus
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Date of publication of this fulltext: 05 Aug 2009 13:27


Abstract

We validate that off-resonant electron transport across {\it ultra-short} oligomer molecular junctions is characterised by a conductance which decays exponentially with length, and we discuss a method to determine the damping factor via the energy spectrum of a periodic structure as a function of complex wavevector. An exact mapping to the complex wavevector is demonstrated by ...

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