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

doi:10.1021/acs.nanolett.5b01877

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

69 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 language	English
Pages (from-to)	5819-5825
Number of pages	7
Journal	Nano letters
Volume	15
Issue number	9
DOIs	https://doi.org/10.1021/acs.nanolett.5b01877
Publication status	Published - 2015 Sept 9

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/acs.nanolett.5b01877

Cite this

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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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AU - Rickhaus, Peter

AU - Liu, Ming Hao

AU - Makk, Péter

AU - Maurand, Romain

AU - Hess, Samuel

AU - Zihlmann, Simon

AU - Weiss, Markus

AU - Richter, Klaus

AU - Schönenberger, Christian

PY - 2015/9/9

Y1 - 2015/9/9

N2 - 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.

AB - 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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EP - 5825

JO - Nano letters

JF - Nano letters

IS - 9

ER -

Guiding of Electrons in a Few-Mode Ballistic Graphene Channel

Abstract

All Science Journal Classification (ASJC) codes

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