Abstract
To control the logical inputs in a surface atomic scale circuit, we introduce the concept of molecule-latch. The switching of certain molecules on a surface can be used to control the conductance of a very simple atomic scale interferometer that can be constructed atom by atom on an Si(100)H surface by STM atomic manipulation. Among the possible surface switching effects, such as surface rotation, push–pull effect or flip-flop switching, we explored the latter switching effect in detail starting from the acetophenone molecule, which can be switched on the Si(100) surface by an inelastic tunnelling current effect. Since this molecule does not offer a true bistable character on the surface, longer-arm acetophenone-like molecules are introduced, keeping the end phenyl unchanged. Among these molecules, 4-acetylalkylphenyl presents the best bistable character on Si(100)H and can perfectly control the conductance of a Si(100)H atomic scale electronic surface interferometer.
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Ample, F., Moresco, F., Joachim, C. (2017). Molecule-Latches in Atomic Scale Surface Logic Gates Constructed on Si(100)H. In: Kolmer, M., Joachim, C. (eds) On-Surface Atomic Wires and Logic Gates . Advances in Atom and Single Molecule Machines. Springer, Cham. https://doi.org/10.1007/978-3-319-51847-3_10
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DOI: https://doi.org/10.1007/978-3-319-51847-3_10
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