Chaotic Dirac billiard in graphene quantum dots

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dc.creatorPonomarenko, L. A.
dc.creatorSchedin, F.
dc.creatorKatsnelson, M. I.
dc.creatorYang, R.
dc.creatorHill, E. H.
dc.creatorNovoselov, K. S.
dc.creatorGeim, A. K.
dc.date2007-12-30
dc.date.accessioned2026-07-07T09:32:50Z
dc.date.available2026-07-07T09:32:50Z
dc.descriptionWe report on transport characteristics of quantum dot devices etched entirely in graphene. At large sizes, they behave as conventional single-electron transistors, exhibiting periodic Coulomb blockade peaks. For quantum dots smaller than 100 nm, the peaks become strongly non-periodic indicating a major contribution of quantum confinement. Random peak spacing and its statistics are well described by the theory of chaotic neutrino (Dirac) billiards. Short constrictions of only a few nm in width remain conductive and reveal a confinement gap of up to 0.5eV, which demonstrates the in-principle possibility of molecular-scale electronics based on graphene.
dc.identifierhttps://arxiv.org/abs/0801.0160
dc.identifierhttp://arxiv.org/abs/0801.0160
dc.identifierScience 320, 356-358 (2008)
dc.identifierdoi:10.1126/science.1154663
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158925
dc.subjectMesoscale and Nanoscale Physics
dc.titleChaotic Dirac billiard in graphene quantum dots
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