Shot noise suppression and hopping conduction in graphene nanoribbons
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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4
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Physical Review B, Volume 82, issue 16, pp. 1-4
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<Vbias<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<W in our nanoribbons.Description
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Danneau, R, Wu, F, Tomi, M Y, Oostinga, J B, Morpurgo, A F & Hakonen, P J 2010, 'Shot noise suppression and hopping conduction in graphene nanoribbons', Physical Review B, vol. 82, no. 16, 161405, pp. 1-4. https://doi.org/10.1103/PhysRevB.82.161405