J. Phys. D: Appl. Phys., 2012, 45, 075301 (6 pages)
We show, by employing the scattering matrix approach, that a
magnetic field applied over a raphene strip can select obliquely
incident ballistic electrons with definite energies, corresponding
to specific Landau levels. The energy range in which filtering is
possible depends on the position of the liquely placed electrodes,
which emit and collect the filtered electrons. Energy tuning is
achieved by modifying the magnetic field strength.