489 citations · 1.8k across the 16 of their papers we have counts for
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Observation of Coulomb blockade in nanostructured epitaxial bilayer graphene on SiC
Cassandra Chua, Arseniy Lartsev, Jinggao Sui +9
We study electron transport in nanostructures patterned in bilayer graphene patches grown epitaxially on SiC as a function of doping, magnetic field, and temperature. Away from cha…
Influence of impurity spin dynamics on quantum transport in epitaxial graphene
Samuel Lara-Avila, Sergey Kubatkin, Oleksiy Kashuba +6
Experimental evidence from both spin-valve and quantum transport measurements points towards unexpectedly fast spin relaxation in graphene. We report magnetotransport studies of ep…
Disorder induced Dirac-point physics in epitaxial graphene from temperature-dependent magneto-transport measurements
J. Huang, J. A. Alexander-Webber, A. M. R. Baker +8
We report a study of disorder effects on epitaxial graphene in the vicinity of the Dirac point by magneto-transport. Hall effect measurements show that the carrier density increase…
Hot carrier relaxation of Dirac fermions in bilayer epitaxial graphene
J. Huang, J. A. Alexander-Webber, T. J. B. M. Janssen +8
Energy relaxation of hot Dirac fermions in bilayer epitaxial graphene is experimentally investigated by magnetotransport measurements on Shubnikov-de Haas oscillations and weak loc…
Phase-space for the breakdown of the quantum Hall effect in epitaxial graphene
J. A. Alexander-Webber, A. M. R. Baker, T. J. B. M. Janssen +7
We report the phase-space defined by the quantum Hall effect breakdown in polymer gated epitaxial graphene on SiC (SiC/G) as a function of temperature, current, carrier density, an…
Quantum resistance metrology using graphene
T. J. B. M. Janssen, A. Tzalenchuk, S. Lara-Avila +2
In this paper we review the recent extraordinary progress in the development of a new quantum standard for resistance based on graphene. We discuss the unique properties of this ma…
Energy loss rates of hot Dirac fermions in epitaxial, exfoliated and CVD graphene
A. M. R. Baker J. A. Alexander-Webber, T. Altebaeumer, S. D. McMullan +8
Energy loss rates for hot carriers in graphene have been measured using graphene produced by epitaxial growth on SiC, exfoliation and chemical vapour deposition (CVD). It is shown…
Precision comparison of the quantum Hall effect in graphene and gallium arsenide
T. J. B. M. Janssen, J. M. Williams, N. E. Fletcher +6
The half-integer quantum Hall effect in epitaxial graphene is compared with high precision to the well known integer effect in a GaAs/AlGaAs heterostructure. We find no difference…
Graphene, universality of the quantum Hall effect and redefinition of the SI system
T. J. B. M. Janssen, N. E. Fletcher, R. Goebel +6
The Système Internationale d'unités (SI system) is about to undergo its biggest change in half a century by redefining the units for mass and current in terms of the fundamental co…
Encapsulation and Electronic Control of Epitaxial Graphene by Photosensitive Polymers and UV light
Samuel Lara-Avila, Kasper Moth-Poulsen, Rositza Yakimova +4
Electronic devices using epitaxial graphene on Silicon Carbide require encapsulation to avoid uncontrolled doping by impurities deposited in ambient conditions. Additionally, inter…
Anomalously strong pinning of the filling factor nu=2 in epitaxial graphene
T. J. B. M. Janssen, A. Tzalenchuk, R. Yakimova +4
We explore the robust quantization of the Hall resistance in epitaxial graphene grown on Si-terminated SiC. Uniquely to this system, the dominance of quantum over classical capacit…
Quantum Resistance Standard Based on Epitaxial Graphene
Alexander Tzalenchuk, Samuel Lara-Avila, Alexei Kalaboukhov +7
We report development of a quantum Hall resistance standard accurate to a few parts in a billion at 300 mK and based on large area epitaxial graphene. The remarkable precision cons…
SiC Graphene Suitable For Quantum Hall Resistance Metrology
Samuel Lara-Avila, Alexei Kalaboukhov, Sara Paolillo +5
We report the first observation of the quantum Hall effect in epitaxial graphene. The result described in the submitted manuscript fills the yawning gap in the understanding of the…