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Magneto-transport properties of a random distribution of few-layer graphene patches

Iacovella, Fabrice and Trinsoutrot, Pierre and Mitioglu, Anatoli and Conédéra, Véronique and Pierre, Matthieu and Raquet, Bertrand and Goiran, Michel and Vergnes, Hugues and Caussat, Brigitte and Plochoka, Paulina and Escoffier, Walter Magneto-transport properties of a random distribution of few-layer graphene patches. (2014) Journal of Applied Physics, vol. 116 (n° 19). pp. 1-7. ISSN 0021-8979

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Official URL: http://dx.doi.org/10.1063/1.4901953

Abstract

In this study, we address the electronic properties of conducting films constituted of an array of randomly distributed few layer graphene patches and investigate on their most salient galvanometric features in the moderate and extreme disordered limit. We demonstrate that, in annealed devices, the ambipolar behaviour and the onset of Landau level quantization in high magnetic field constitute robust hallmarks of few-layer graphene films. In the strong disorder limit, however, the magnetotransport properties are best described by a variable-range hopping behaviour. A large negative magneto-conductance is observed at the charge neutrality point, in consistency with localized transport regime.

Item Type:Article
Additional Information:Thanks to American Institute of Physics (AIP) editor. The original PDF of the article can be found at Journal of Applied Physics website : http://scitation.aip.org/content/aip/journal/jap
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Brigitte CAUSSAT-BONNANS
Deposited On:23 Jan 2015 09:28

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