Skipping orbits and enhanced resistivity in large-diameter InAs/GaSb   antidot lattices
  We investigated the magnetotransport properties of high-mobility InAs/GaSb antidot lattices. In addition to the usual commensurability features at low magnetic field we found a broad maximum of classical origin around 2.5 T. The latter can be ascribed to a class of rosetta type orbits encircling a single antidot. This is shown by both a simple transport calculation based on a classical Kubo formula and an analysis of the Poincare surface of section at different magnetic field values. At low temperatures we observe weak 1/B-periodic oscillations superimposed on the classical maximum. 
J. Eroms (1), M. Zitzlsperger (1), D. Weiss (1), J. H. Smet (2), C.   Albrecht (2), R. Fleischmann (3), M. Behet (4), J. De ...