Impact of Heterostructure Design on Transport Properties in the Second Landau Level of in-situ Back-Gated Two-Dimensional Electron Gases

J. D. Watson, G. A. Csáthy, M. J. Manfra

We report on transport in the second Landau level in \emph{in-situ} back-gated two-dimensional electron gases in GaAs/Al${}_x$Ga${}_{1-x}$As quantum wells. Minimization of gate leakage…