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Resonant Tunneling Spectroscopy of Interacting Localised States -- Observation of the Correlated Current Through Two Impurities
V. V. Kuznetsov, A. K. Savchenko, D. R. Mace +2
We study effects of Coulomb interactions between localised states in a potential barrier by measuring resonant-tunneling spectra with a small bias applied along the barrier. In the…
Metal-insulator transition at B=0 in an ultra-low density () two dimensional GaAs/AlGaAs hole gas
M. Y. Simmons, A. R. Hamilton, T. G. Griffiths +3
We have observed a metal-insulator transition in an ultra-low density two dimensional hole gas formed in a high quality GaAs-AlGaAs heterostructure at B=0. At the highest carrier d…
Metal-insulator transition at B=0 in a dilute two dimensional GaAs-AlGaAs hole gas
M. Y. Simmons, A. R. Hamilton, M. Pepper +3
We report the observation of a metal insulator transition at B=0 in a high mobility two dimensional hole gas in a GaAs-AlGaAs heterostructure. A clear critical point separates the…