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Volumn 79, Issue 3, 2009, Pages

Quasi-bound states induced by one-dimensional potentials in graphene

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EID: 60349129643     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.79.035411     Document Type: Article
Times cited : (33)

References (28)
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    • More careful studies show a much smaller magnitude of the gap induced by the spin-orbit couplings, see 10.1103/PhysRevB.74.155426;
    • More careful studies show a much smaller magnitude of the gap induced by the spin-orbit couplings, see D. Huertas-Hernando, F. Guinea, and A. Brataas, Phys. Rev. B 74, 155426 (2006) 10.1103/PhysRevB.74.155426
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    • For graphene, both electrons (with positive energies) and holes (with negative energies) can simultaneously contribute to the transmission probability at the Fermi level. Then, taking into account the chirality of Dirac carriers, the transmission T expressed in terms of T -matrix elements has a more complicated form covering that mentioned in the text as a particular case. This case is functioned when electron energies in the two leads have the same sign. In this work, concerning the QBSs, electron energies in both leads are positive.
    • For graphene, both electrons (with positive energies) and holes (with negative energies) can simultaneously contribute to the transmission probability at the Fermi level. Then, taking into account the chirality of Dirac carriers, the transmission T expressed in terms of T -matrix elements has a more complicated form covering that mentioned in the text as a particular case. This case is functioned when electron energies in the two leads have the same sign. In this work, concerning the QBSs, electron energies in both leads are positive.
  • 25
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    • For example, estimations of the ratio γ between the resonant-level width and the mean interlevel spacing give γ≈4× 10-3 and 6× 10-3 for levels 2 and 3, respectively in Fig. 2 (upper inset, d=100 nm) and γ≈6× 10-2 and 5× 10-2 for levels 2 and 3, respectively, in Fig. 4 (ky =0.025 nm-1).
    • For example, estimations of the ratio γ between the resonant-level width and the mean interlevel spacing give γ≈4× 10-3 and 6× 10-3 for levels 2 and 3, respectively in Fig. 2 (upper inset, d=100 nm) and γ≈6× 10-2 and 5× 10-2 for levels 2 and 3, respectively, in Fig. 4 (ky =0.025 nm-1).
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    • (2007) Appl. Phys. Lett. , vol.90 , pp. 143111
    • Dragoman, D.1    Dragoman, M.2


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