Effective Magnetic Fields in Graphene Superlattices

Physics – Condensed Matter – Mesoscale and Nanoscale Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4 pages (+ 2 pages of supplementary material), 3 figures

Scientific paper

10.1103/PhysRevLett.105.156801

We demonstrate that the electronic spectrum of graphene in a one-dimensional periodic potential will develop a Landau level spectrum when the potential magnitude varies slowly in space. The effect is related to extra Dirac points generated by the potential whose positions are sensitive to its magnitude. We develop an effective theory that exploits a chiral symmetry in the Dirac Hamiltonian description with a superlattice potential, to show that the low energy theory contains an effective magnetic field. Numerical diagonalization of the Dirac equation confirms the presence of Landau levels. Possible consequences for transport are discussed.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Effective Magnetic Fields in Graphene Superlattices 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 Effective Magnetic Fields in Graphene Superlattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effective Magnetic Fields in Graphene Superlattices will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-637671

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.