Author/Authors :
A Dorn، نويسنده , , M Sigrist، نويسنده , , A Fuhrer، نويسنده , , T Ihn، نويسنده , , T Heinzel، نويسنده , , K Ensslin، نويسنده , , W Wegscheider، نويسنده , , M Bichler، نويسنده ,
Abstract :
Finite antidot arrays were fabricated by atomic force lithography using local anodic oxidation. Low-temperature magnetoresistance measurements on a square 20×20 antidot lattice with a period of View the MathML source showed clear commensurability peaks as well as a quenching of the Hall effect around zero magnetic field. In addition B-periodic oscillations were found superimposed on the main commensurability peak around one antidot at temperatures as high as View the MathML source. These observations indicate the high electronic quality of AFM-defined antidot lattices.
