Nonlinear effects in a two-dimensional electron gas with periodic lattice of Scatterers
Gusev G.M., Kvon Z.D., Pogosov A.G., Voronin M.M.
The magnetoresistance of two-dimensional (2D) electrons in the periodic lattice of antidots was found to be essentially influenced by an applied electric field. The nonohmic behavior of the resistance in the region of commensurability oscillations originates from the electric field induced break-down of the trajectories skipping along the lattice arrays. In the region of magnetic fields where the cyclotron diameter is less than the distance between antidots the break-down of the orbits skipping around antidots is responsible for the nonlinear behavior of magnetoresistance. PACS: 73.50.-h