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Theory of STM junctions for π-conjugated molecules on thin insulating films

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Sobczyk, Sandra ; Donarini, Andrea ; Grifoni, Milena
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Date of publication of this fulltext: 15 May 2012 11:35


A microscopic theory of the transport in a scanning tunneling microscope (STM) setup is introduced for π-conjugated molecules on insulating films, based on the density matrix formalism. A key role is played in the theory by the energy dependent tunneling rates which account for the coupling of the molecule to the tip and to the substrate. In particular, we analyze how the geometrical differences ...


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