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Shot noise suppression and hopping conduction in graphene nanoribbons

Publication date2010
Abstract

We have investigated shot noise and conduction of graphene field-effect nanoribbon devices at low temperature. By analyzing the exponential I-V characteristics of our devices in the transport gap region, we found out that transport follows variable range hopping laws at intermediate bias voltages 1<12 mV. In parallel, we observe a strong shot noise suppression leading to very low Fano factors. The strong suppression of shot noise is consistent with inelastic hopping, in crossover from one- to two-dimensional regime, indicating that the localization length lloc

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Citation (ISO format)
DANNEAU, R. et al. Shot noise suppression and hopping conduction in graphene nanoribbons. In: Physical review. B, Condensed matter and materials physics, 2010, vol. 82, n° 16. doi: 10.1103/PhysRevB.82.161405
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accessLevelPublic
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Journal ISSN1098-0121
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