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Electrostatic confinement of electrons in graphene nanoribbons

Liu, Xinglan
Vandersypen, Lieven M. K.
Published in Physical Review. B, Condensed Matter. 2009, vol. 80, no. 12
Abstract Coulomb blockade is observed in a graphene nanoribbon device with a top gate. When two pn junctions are formed via the back gate and the local top gate, electrons are confined between the pn junctions which act as the barriers. When no pn junctions are induced by the gate voltages, electrons are still confined, as a result of strong disorder, but in a larger area. Measurements on five other devices with different dimensions yield consistent results.
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LIU, Xinglan et al. Electrostatic confinement of electrons in graphene nanoribbons. In: Physical Review. B, Condensed Matter, 2009, vol. 80, n° 12. doi: 10.1103/PhysRevB.80.121407 https://archive-ouverte.unige.ch/unige:35114

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Deposited on : 2014-03-31

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