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- W2022454893 abstract "We numerically calculate the conductance and shot noise Fano factor of graphene nanoribbons (GNRs) side-contacted to metallic leads. A tight-binding model and Landauer's formalism are used in combination with a modified recursion method for Green's functions. The interfaces are modeled as a contact region between an infinite metallic electrode and a segment of the GNR put on top of it. The key question to answer in this study is how the size and orientation of the GNR and the GNR/electrode interface area influence the transport properties. It turns out that in general the transport characteristics depend strongly on overlap, meant as the ratio between the electrode-supported GNR length and the unsupported one. Moreover, a speed of convergence (with the overlap length) depends on both the transport direction and the aspect ratio of the GNR. It is shown that a short overlap interface is often, but not always, advantageous in nanoelectronics. These findings reconcile some seemingly conflicting opinions reported in the literature." @default.
- W2022454893 created "2016-06-24" @default.
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- W2022454893 date "2011-10-06" @default.
- W2022454893 modified "2023-10-09" @default.
- W2022454893 title "Electronic transport through side-contacted graphene nanoribbons: effects of overlap, aspect ratio and orientation" @default.
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- W2022454893 doi "https://doi.org/10.1088/0957-4484/22/44/445201" @default.
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