Transport in Graphene p-n Junctions in Magnetic Field

Details Transport in Graphene p-n Junctions in Magnetic Field Transport in Graphene p-n Junctions in Magnetic Field

2007-08-22

arxiv.org/abs/0708.3081v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

Ballistic transport in graphene p-n junctions in the presence of magnetic field exhibits two distinct regimes: At low fields, transport is partially suppressed by the field. When the field exceeds a certain critical value, the junction is pinched off by the Landau level formation. Transmission and conductance are found in the entire range of fields using Lorentz boost and mapping to the Landau-Zener problem. We show that perfect transmission occurs at a field-dependent collimation angle, indicating that the chiral dynamics of massless Dirac fermions persists at a finite magnetic field. A current switch, utilizing field-tunable collimation angle, is proposed. With a generalization of the developed approach we study transmission through p-n junctions in graphene bilayer.

Affiliated with

Also associated with

No associations

Rating

Transport in Graphene p-n Junctions in Magnetic Field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Transport in Graphene p-n Junctions in Magnetic Field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transport in Graphene p-n Junctions in Magnetic Field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-136281