Tunable energy filtering of ballistic electrons in graphene (Туннельная фильтрация по энергии баллистических электронов в графене.)

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.