Guiding of Electrons in a Few-Mode Ballistic Graphene Channel

Peter Rickhaus, Ming Hao Liu, Péter Makk, Romain Maurand, Samuel Hess, Simon Zihlmann, Markus Weiss, Klaus Richter, Christian Schönenberger

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)5819-5825
Number of pages7
JournalNano letters
Volume15
Issue number9
DOIs
Publication statusPublished - 2015 Sep 9

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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