http://www.cnr.it/ontology/cnr/individuo/prodotto/ID2364
Numerical study of electronic transport in gated graphene ribbons (Articolo in rivista)
- Type
- Label
- Numerical study of electronic transport in gated graphene ribbons (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.76.205433 (literal)
- Alternative label
Cresti, A; Grosso, G; Parravicini, GP (2007)
Numerical study of electronic transport in gated graphene ribbons
in Physical review. B, Condensed matter and materials physics; AIP, American institute of physics, Melville, NY (Stati Uniti d'America)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Cresti, A; Grosso, G; Parravicini, GP (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://link.aps.org/doi/10.1103/PhysRevB.76.205433 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- NEST CNR INFM, I-56126 Pisa, Italy; Univ Pisa, Dipartimento Fis E Fermi, I-56127 Pisa, Italy; Scuola Normale Super Pisa, I-56126 Pisa, Italy; Univ Pavia, Dipartimento Fis A Volta, I-27100 Pavia, Italy (literal)
- Titolo
- Numerical study of electronic transport in gated graphene ribbons (literal)
- Abstract
- Electron transport and current profiles through gated graphene ribbons are addressed within the tight-binding Keldysh formalism. Conductance, conductivity, and current quantum shot noise are studied numerically as functions of the width of the ribbons, length of the gated region, and strength of the gate potential. Crossover between pseudodiffusive and ballistic transport regimes is examined in detail. In particular, around the energy of the gate potential, it is shown that the pseudodiffusive regime occurs even for moderate potential strengths, well below the onset of the sp(2) hybridized bands of graphene. These findings are supported by the evaluation of current profiles of the massless Dirac fermions throughout graphene ribbons. (literal)
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