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Linear conductances of gated graphene structures with selected connectivity

Anton Ramsak, Lara Ulčakar, Tomaž Rejec

Abstract


The ratio of conductances through carbon-ring based molecules are calculated for various  positions  of  source-drain  electrode  leads  on  the  molecule.    These  ratios are usually integers – the so-called magic numbers.  We find that deviations of the magic number ratios are either zero or quadratic in ratios of tight-binding model parameters.


Keywords


conductance; Landauer formalism; quantum dots; interference effects

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DOI: http://dx.doi.org/10.17344/acsi.2016.2560

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Copyright (c) 2016 Anton Ramsak, Lara Ulčakar, Tomaž Rejec

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