Dresden 2009 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 35: Postersession Transport: Nanoelectronics, Quantum Coherence and Quantum Information, Fluctuations and Noise
TT 35.11: Poster
Mittwoch, 25. März 2009, 14:00–18:00, P1A
Conductance oscillations of polyacetylene at finite temperature — •Davoud Pouladsaz1,2, Thomas Geßner2,3, Michael Schreiber1, and Reinhard Streiter2,3 — 1Institut für Physik, Technische Universität Chemnitz — 2Zentrum für Mikrotechnologien (ZfM), Technische Universität Chemnitz — 3Fraunhofer-Einrichtung für Elektronische Nanosysteme (ENAS), Chemnitz
The length-dependence of the differential conductance oscillations in trans-polyacetylenes, suspended between gold contacts, is investigated by employing the non-equilibrium Green’s function technique within the density-functional-based tight-binding method (gDFTB) to study the electronic transport properties of the proposed system under the applied bias voltages at finite temperature. The results reveal the efficient influence of the sulfur atoms, as the strong bonding clips to gold atoms, in the quantum transport.