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Guiding of Electrons in a Few-Mode Ballistic Graphene Channel

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Rickhaus, Peter ; Liu, Ming-Hao ; Makk, Péter ; Maurand, Romain ; Hess, Samuel ; Zihlmann, Simon ; Weiss, Markus ; Richter, Klaus ; Schönenberger, Christian
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arXiv PDF (09.09.2015)
Date of publication of this fulltext: 17 Sep 2015 11:10


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 ...


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