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  • Title: Guiding of Electrons in a Few-Mode Ballistic Graphene Channel.
    Author: Rickhaus P, Liu MH, Makk P, Maurand R, Hess S, Zihlmann S, Weiss M, Richter K, Schönenberger C.
    Journal: Nano Lett; 2015 Sep 09; 15(9):5819-25. PubMed ID: 26280622.
    Abstract:
    In graphene, the extremely fast charge carriers can be controlled by electron-optical elements, such as waveguides, in which the transmissivity is tuned by the wavelength. In this work, charge carriers are guided in a suspended ballistic few-mode graphene channel, defined by electrostatic gating. By depleting the channel, a reduction of mode number and steps in the conductance are observed, until the channel is completely emptied. The measurements are supported by tight-binding transport calculations including the full electrostatics of the sample.
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