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Topological confinement in an antisymmetric potential in bilayer graphene in the presence of a magnetic field.

Zarenia M, Pereira JM, Peeters FM, de Aquino Farias G - Nanoscale Res Lett (2011)

Bottom Line: We investigate the effect of an external magnetic field on the carrier states that are localized at a potential kink and a kink-antikink in bilayer graphene.These chiral states are localized at the interface between two potential regions with opposite signs.PACS numbers: 71.10.Pm, 73.21.-b, 81.05.Uw.

View Article: PubMed Central - HTML - PubMed

Affiliation: Departamento de Física, Universidade Federal do Ceará, Fortaleza, Ceará, 60455-760, Brazil. pereira@fisica.ufc.br.

ABSTRACT
We investigate the effect of an external magnetic field on the carrier states that are localized at a potential kink and a kink-antikink in bilayer graphene. These chiral states are localized at the interface between two potential regions with opposite signs.PACS numbers: 71.10.Pm, 73.21.-b, 81.05.Uw.

No MeSH data available.


Energy levels of a single kink profile in bilayer graphene as function of external magnetic field B0 with the same parameters as Fig. 2 for (a) and (b) .
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Figure 3: Energy levels of a single kink profile in bilayer graphene as function of external magnetic field B0 with the same parameters as Fig. 2 for (a) and (b) .

Mentions: Figure 3 shows the dependence of the single kink energies on the external magnetic field for (a) and (b) . The branches that appear for /E/t/ > 0.25 correspond to Landau levels that arise from the continuum of free states. It is seen that the spectrum of confined states is very weakly influenced by the magnetic field. That is a consequence of the strong confinement of the states in the kink potential. In a semiclassical view, the movement of the carriers is constrained by the potential, which prevents the formation of cyclotron orbits.


Topological confinement in an antisymmetric potential in bilayer graphene in the presence of a magnetic field.

Zarenia M, Pereira JM, Peeters FM, de Aquino Farias G - Nanoscale Res Lett (2011)

Energy levels of a single kink profile in bilayer graphene as function of external magnetic field B0 with the same parameters as Fig. 2 for (a) and (b) .
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211872&req=5

Figure 3: Energy levels of a single kink profile in bilayer graphene as function of external magnetic field B0 with the same parameters as Fig. 2 for (a) and (b) .
Mentions: Figure 3 shows the dependence of the single kink energies on the external magnetic field for (a) and (b) . The branches that appear for /E/t/ > 0.25 correspond to Landau levels that arise from the continuum of free states. It is seen that the spectrum of confined states is very weakly influenced by the magnetic field. That is a consequence of the strong confinement of the states in the kink potential. In a semiclassical view, the movement of the carriers is constrained by the potential, which prevents the formation of cyclotron orbits.

Bottom Line: We investigate the effect of an external magnetic field on the carrier states that are localized at a potential kink and a kink-antikink in bilayer graphene.These chiral states are localized at the interface between two potential regions with opposite signs.PACS numbers: 71.10.Pm, 73.21.-b, 81.05.Uw.

View Article: PubMed Central - HTML - PubMed

Affiliation: Departamento de Física, Universidade Federal do Ceará, Fortaleza, Ceará, 60455-760, Brazil. pereira@fisica.ufc.br.

ABSTRACT
We investigate the effect of an external magnetic field on the carrier states that are localized at a potential kink and a kink-antikink in bilayer graphene. These chiral states are localized at the interface between two potential regions with opposite signs.PACS numbers: 71.10.Pm, 73.21.-b, 81.05.Uw.

No MeSH data available.