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

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dc.creatorFagas, Giorgos
dc.creatorKambili, Agapi
dc.creatorElstner, Marcus
dc.date2003-08-06
dc.date2004-03-12
dc.date.accessioned2026-07-07T02:52:47Z
dc.date.available2026-07-07T02:52:47Z
dc.descriptionWe 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 first-principle-based calculations of: a) the conductance of molecular junctions of phenyl-ethynylene wires covalently bonded to graphitic ribbons as a function of the bridge length, and b) the complex-band structure of poly-phenyl-ethynylene.
dc.descriptionversion to appear in Chem Phys Lett; 8 pages, 4 figures; minor changes to the 06/08/03 submission (nomenclature and added concluding remark)
dc.identifierhttps://arxiv.org/abs/cond-mat/0308114
dc.identifierhttp://arxiv.org/abs/cond-mat/0308114
dc.identifierChem. Phys. Lett. v389, pp 268-273 (2004)
dc.identifierdoi:10.1016/j.cplett.2004.03.090
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21972
dc.subjectMaterials Science
dc.subjectMesoscale and Nanoscale Physics
dc.subjectChemical Physics
dc.titleComplex-band structure: a method to determine the off-resonant electron transport in oligomers
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