Full text loading...
(Color online) (a) SdH oscillations of quantum wires of different effective widths (log-scale) at . The first-order node of the beating pattern is indicated by an arrow. The position of is indicated by a circle. The inset shows a magnified signal around the first-order node of the wide wire. (b) vs of the , , and wide wires. The second-order nodes are indicated by arrows.
(Color online) Positions of the first- and second-order nodes of the beating pattern experimentally observed in the magnetoresistance (⋆). The node positions obtained from the simulation are marked by filled squares.
(Color online) Spacing of neighboring Landau levels crossing at different magnetic fields for a 2DEG (a) and a wide wire (b). Position of nodes (N) and maxima (M) in the beating pattern of SdH oscillations. The experimental and theoretical curve of of the 2DEG is added in (a) for comparison. A schematic illustration of the wire potential is shown in (b) as an inset.
Article metrics loading...