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Updated: May 20, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Magneto-transport of graphene and quantum phase transitions in the quantum Hall regime
Mario Amado1, Enrique Diez, Francesco Rossella
1Laboratorio de Bajas Temperaturas, Universidad de Salamanca, 37008 Salamanca, Spain. mario.amado@nano.cnr.it
Abstract:
In this paper we show the electronic transport and the quantum phase transitions that characterize the quantum Hall regime in graphene placed on SiO(2) substrates at magnetic fields up to 28 T and temperatures down to 4 K. The analysis of the temperature dependence of the Hall and longitudinal resistivity reveals intriguing non-universalities of the critical exponents of the plateau-insulator transition. These exponents depend on the type of disorder that governs the electrical transport and its characterization is important for the design and fabrication of novel graphene nano-devices.
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