Signatures of single quantum dots in graphene nanoribbons within the quantum Hall regime

Endre Tóvári, Péter Makk, Peter Rickhaus, Christian Schönenberger, S. Csonka

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We report on the observation of periodic conductance oscillations near quantum Hall plateaus in suspended graphene nanoribbons. They are attributed to single quantum dots that are formed in the narrowest part of the ribbon, in the valleys and hills of a disorder potential. In a wide flake with two gates, a double-dot system's signature has been observed. Electrostatic confinement is enabled in single-layer graphene due to the gaps that are formed between the Landau levels, suggesting a way to create gate-defined quantum dots that can be accessed with quantum Hall edge states.

Original languageEnglish
Pages (from-to)11480-11486
Number of pages7
JournalNanoscale
Volume8
Issue number22
DOIs
Publication statusPublished - Jun 14 2016

Fingerprint

Nanoribbons
Carbon Nanotubes
Graphite
Graphene
Semiconductor quantum dots
Electrostatics

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Signatures of single quantum dots in graphene nanoribbons within the quantum Hall regime. / Tóvári, Endre; Makk, Péter; Rickhaus, Peter; Schönenberger, Christian; Csonka, S.

In: Nanoscale, Vol. 8, No. 22, 14.06.2016, p. 11480-11486.

Research output: Contribution to journalArticle

Tóvári, E, Makk, P, Rickhaus, P, Schönenberger, C & Csonka, S 2016, 'Signatures of single quantum dots in graphene nanoribbons within the quantum Hall regime', Nanoscale, vol. 8, no. 22, pp. 11480-11486. https://doi.org/10.1039/c6nr00187d
Tóvári, Endre ; Makk, Péter ; Rickhaus, Peter ; Schönenberger, Christian ; Csonka, S. / Signatures of single quantum dots in graphene nanoribbons within the quantum Hall regime. In: Nanoscale. 2016 ; Vol. 8, No. 22. pp. 11480-11486.
@article{500ecf0a4c18443b84702f91bf24e9e3,
title = "Signatures of single quantum dots in graphene nanoribbons within the quantum Hall regime",
abstract = "We report on the observation of periodic conductance oscillations near quantum Hall plateaus in suspended graphene nanoribbons. They are attributed to single quantum dots that are formed in the narrowest part of the ribbon, in the valleys and hills of a disorder potential. In a wide flake with two gates, a double-dot system's signature has been observed. Electrostatic confinement is enabled in single-layer graphene due to the gaps that are formed between the Landau levels, suggesting a way to create gate-defined quantum dots that can be accessed with quantum Hall edge states.",
author = "Endre T{\'o}v{\'a}ri and P{\'e}ter Makk and Peter Rickhaus and Christian Sch{\"o}nenberger and S. Csonka",
year = "2016",
month = "6",
day = "14",
doi = "10.1039/c6nr00187d",
language = "English",
volume = "8",
pages = "11480--11486",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "22",

}

TY - JOUR

T1 - Signatures of single quantum dots in graphene nanoribbons within the quantum Hall regime

AU - Tóvári, Endre

AU - Makk, Péter

AU - Rickhaus, Peter

AU - Schönenberger, Christian

AU - Csonka, S.

PY - 2016/6/14

Y1 - 2016/6/14

N2 - We report on the observation of periodic conductance oscillations near quantum Hall plateaus in suspended graphene nanoribbons. They are attributed to single quantum dots that are formed in the narrowest part of the ribbon, in the valleys and hills of a disorder potential. In a wide flake with two gates, a double-dot system's signature has been observed. Electrostatic confinement is enabled in single-layer graphene due to the gaps that are formed between the Landau levels, suggesting a way to create gate-defined quantum dots that can be accessed with quantum Hall edge states.

AB - We report on the observation of periodic conductance oscillations near quantum Hall plateaus in suspended graphene nanoribbons. They are attributed to single quantum dots that are formed in the narrowest part of the ribbon, in the valleys and hills of a disorder potential. In a wide flake with two gates, a double-dot system's signature has been observed. Electrostatic confinement is enabled in single-layer graphene due to the gaps that are formed between the Landau levels, suggesting a way to create gate-defined quantum dots that can be accessed with quantum Hall edge states.

UR - http://www.scopus.com/inward/record.url?scp=84973537661&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84973537661&partnerID=8YFLogxK

U2 - 10.1039/c6nr00187d

DO - 10.1039/c6nr00187d

M3 - Article

VL - 8

SP - 11480

EP - 11486

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 22

ER -