Limits...
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.


y component of the Persistent current in bilayer graphene as function of x direction for the values of magnetic field where E = EF which are indicated by (1), (2), ... in Fig. 7(a),(b).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC3211872&req=5

Figure 8: y component of the Persistent current in bilayer graphene as function of x direction for the values of magnetic field where E = EF which are indicated by (1), (2), ... in Fig. 7(a),(b).

Mentions: The x-component of the current vanishes for the confined states. It should be noticed that a non-zero current can be found for E = 0, as can be deduced from the dispersion relations. Figure 8 shows plots of the y-component of the current density as function of x for the states labelled (1) to (6) in panels (a) and (b) of Figure 7. For the results presented in Figure 8(a) show a persistent current carried by each kink region, irrespective of the direction of B0, as exemplified by the states (1) and (2) which correspond to opposite directions of magnetic field. For non-zero wave vectors, however, as shown in panels (b) and (c), the current is strongly localized around either potential kink. In Figure 8(b), the density current curve shows an additional peak caused by a stronger magnetic field (B0 ≈ 10 T ).


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)

y component of the Persistent current in bilayer graphene as function of x direction for the values of magnetic field where E = EF which are indicated by (1), (2), ... in Fig. 7(a),(b).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 8: y component of the Persistent current in bilayer graphene as function of x direction for the values of magnetic field where E = EF which are indicated by (1), (2), ... in Fig. 7(a),(b).
Mentions: The x-component of the current vanishes for the confined states. It should be noticed that a non-zero current can be found for E = 0, as can be deduced from the dispersion relations. Figure 8 shows plots of the y-component of the current density as function of x for the states labelled (1) to (6) in panels (a) and (b) of Figure 7. For the results presented in Figure 8(a) show a persistent current carried by each kink region, irrespective of the direction of B0, as exemplified by the states (1) and (2) which correspond to opposite directions of magnetic field. For non-zero wave vectors, however, as shown in panels (b) and (c), the current is strongly localized around either potential kink. In Figure 8(b), the density current curve shows an additional peak caused by a stronger magnetic field (B0 ≈ 10 T ).

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.