The effect of bilayer regions on the response of epitaxial graphene devices to environmental gating. / Pearce, Ruth ; Eless, Viktoria; Lartsev, Arseniy; Barker Snook, I.L.; Helmore, J.J.; Yakimova, Rositza ; Gallop, J.C.; Hao, Ling.

In: Carbon, Vol. 93, 11.2015, p. 896-902.

Research output: Contribution to journalArticlepeer-review

Published

Standard

The effect of bilayer regions on the response of epitaxial graphene devices to environmental gating. / Pearce, Ruth ; Eless, Viktoria; Lartsev, Arseniy; Barker Snook, I.L.; Helmore, J.J.; Yakimova, Rositza ; Gallop, J.C.; Hao, Ling.

In: Carbon, Vol. 93, 11.2015, p. 896-902.

Research output: Contribution to journalArticlepeer-review

Harvard

Pearce, R, Eless, V, Lartsev, A, Barker Snook, IL, Helmore, JJ, Yakimova, R, Gallop, JC & Hao, L 2015, 'The effect of bilayer regions on the response of epitaxial graphene devices to environmental gating', Carbon, vol. 93, pp. 896-902. https://doi.org/10.1016/j.carbon.2015.05.061

APA

Pearce, R., Eless, V., Lartsev, A., Barker Snook, I. L., Helmore, J. J., Yakimova, R., Gallop, J. C., & Hao, L. (2015). The effect of bilayer regions on the response of epitaxial graphene devices to environmental gating. Carbon, 93, 896-902. https://doi.org/10.1016/j.carbon.2015.05.061

Vancouver

Author

Pearce, Ruth ; Eless, Viktoria ; Lartsev, Arseniy ; Barker Snook, I.L. ; Helmore, J.J. ; Yakimova, Rositza ; Gallop, J.C. ; Hao, Ling. / The effect of bilayer regions on the response of epitaxial graphene devices to environmental gating. In: Carbon. 2015 ; Vol. 93. pp. 896-902.

BibTeX

@article{6a261bba794c41a5be48fe59c01af1a8,
title = "The effect of bilayer regions on the response of epitaxial graphene devices to environmental gating",
abstract = "The effect of a bilayer area on the electronic response to environmental gating of a monolayer graphene Hall bar device is investigated using room temperature magnetotransport and scanning Kelvin probe microscopy measurements in a controlled environment. The device is tuned through the charge neutrality point with n–p–n-junctions formed. Scanning Kelvin probe measurements show that the work function of the monolayer graphene decreases more than that of the bilayer area however magnetotransport measurements show a larger change in carrier concentration for bilayer graphene with environmental gating. Interface scattering at the boundary between the monolayer and bilayer regions also affects device response with field-dependent suppression of the conductivity observed near the charge neutrality point. Simultaneous electronic and environmental scanning Kelvin probe measurements are used to build nano-scale maps of the work function of the device surface revealing the areas of greatest work function change with environmental gating.",
author = "Ruth Pearce and Viktoria Eless and Arseniy Lartsev and {Barker Snook}, I.L. and J.J. Helmore and Rositza Yakimova and J.C. Gallop and Ling Hao",
year = "2015",
month = nov,
doi = "10.1016/j.carbon.2015.05.061",
language = "English",
volume = "93",
pages = "896--902",
journal = "Carbon",
issn = "0008-6223",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - The effect of bilayer regions on the response of epitaxial graphene devices to environmental gating

AU - Pearce, Ruth

AU - Eless, Viktoria

AU - Lartsev, Arseniy

AU - Barker Snook, I.L.

AU - Helmore, J.J.

AU - Yakimova, Rositza

AU - Gallop, J.C.

AU - Hao, Ling

PY - 2015/11

Y1 - 2015/11

N2 - The effect of a bilayer area on the electronic response to environmental gating of a monolayer graphene Hall bar device is investigated using room temperature magnetotransport and scanning Kelvin probe microscopy measurements in a controlled environment. The device is tuned through the charge neutrality point with n–p–n-junctions formed. Scanning Kelvin probe measurements show that the work function of the monolayer graphene decreases more than that of the bilayer area however magnetotransport measurements show a larger change in carrier concentration for bilayer graphene with environmental gating. Interface scattering at the boundary between the monolayer and bilayer regions also affects device response with field-dependent suppression of the conductivity observed near the charge neutrality point. Simultaneous electronic and environmental scanning Kelvin probe measurements are used to build nano-scale maps of the work function of the device surface revealing the areas of greatest work function change with environmental gating.

AB - The effect of a bilayer area on the electronic response to environmental gating of a monolayer graphene Hall bar device is investigated using room temperature magnetotransport and scanning Kelvin probe microscopy measurements in a controlled environment. The device is tuned through the charge neutrality point with n–p–n-junctions formed. Scanning Kelvin probe measurements show that the work function of the monolayer graphene decreases more than that of the bilayer area however magnetotransport measurements show a larger change in carrier concentration for bilayer graphene with environmental gating. Interface scattering at the boundary between the monolayer and bilayer regions also affects device response with field-dependent suppression of the conductivity observed near the charge neutrality point. Simultaneous electronic and environmental scanning Kelvin probe measurements are used to build nano-scale maps of the work function of the device surface revealing the areas of greatest work function change with environmental gating.

U2 - 10.1016/j.carbon.2015.05.061

DO - 10.1016/j.carbon.2015.05.061

M3 - Article

VL - 93

SP - 896

EP - 902

JO - Carbon

JF - Carbon

SN - 0008-6223

ER -