Fermi Liquid to Luttinger Liquid Transition at the Edge of a Two-Dimensional Electron Gas
Fermi Liquid to Luttinger Liquid Transition at the Edge of a Two-Dimensional Electron Gas
We present experimental results on the tunneling into the edge of a two-dimensional electron gas (2DEG) obtained with a GaAs/AlGaAs cleaved edge overgrown structure. While the 2DEG exhibits typical fractional quantum Hall features of a very high mobility sample, we observe the onset of a nonlinear current-voltage characteristic in the …