Shot noise in lithographically patterned graphene nanoribbons
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
5
Series
Physical Review B, Volume 88, issue 24, pp. 1-5
Abstract
We have investigated shot noise and conductance of multiterminal graphene nanoribbon devices at temperatures down to 50 mK. Away from the charge neutrality point, we find a Fano factor F≈0.4, nearly independent of the charge density. Our shot noise results are consistent with theoretical models for disordered graphene ribbons with a dimensionless scattering strength K0≈10 corresponding to rather strong disorder. Close to charge neutrality, an increase in F up to ∼0.7 is found, which indicates the presence of a dominant Coulomb gap possibly due to a single quantum dot in the transport gap.Description
Keywords
Other note
Citation
Tan, Z B, Puska, A, Nieminen, T, Duerr, F, Gould, C, Molenkamp, LW, Trauzettel, B & Hakonen, P J 2013, 'Shot noise in lithographically patterned graphene nanoribbons', Physical Review B, vol. 88, no. 24, 245415, pp. 1-5. https://doi.org/10.1103/PhysRevB.88.245415