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Title: Quantum transport through aromatic molecules

In this paper, we study the electronic transport properties through aromatic molecules connected to two semi-infinite leads. The molecules are in different geometrical configurations including arrays. Using a nearest neighbor tight-binding approach, the transport properties are analyzed into a Green's function technique within a real-space renormalization scheme. We calculate the transmission probability and the Current-Voltage characteristics as a function of a molecule-leads coupling parameter. Our results show different transport regimes for these systems, exhibiting metal-semiconductor-insulator transitions and the possibility to employ them in molecular devices.
Authors:
 [1] ;  [2] ;  [3] ;  [1]
  1. Instituto de Alta investigación, Universidad de Tarapaca, Casilla 7D Arica (Chile)
  2. (Colombia)
  3. Departamento de Física, Universidad Nacional de Colombia, Bogotá D. C. (Colombia)
Publication Date:
OSTI Identifier:
22258718
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 114; Journal Issue: 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONFIGURATION; COUPLING; ELECTRIC POTENTIAL; GREEN FUNCTION; MOLECULES; QUANTUM MECHANICS; RENORMALIZATION; SEMICONDUCTOR MATERIALS