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Possible Spin Polarization in a One-Dimensional Electron Gas
K. J. Thomas, J. T. Nicholls, M. Y. Simmons +3
In zero magnetic field, conductance measurements of clean one-dimensional (1D) constrictions defined in GaAs/AlGaAs heterostructures show twenty-six quantized ballistic plateaux, a…
Re-entrant resonant tunneling
V. V. Kuznetsov, A. K. Savchenko, M. E. Raikh +4
We study the effect of electron-electron interactions on the resonant-tunneling spectroscopy of the localized states in a barrier. Using a simple model of three localized states, w…
Ballistic Composite Fermions in Semiconductor Nanostructures
J. E. F. Frost, C. -T. Liang, D. R. Mace +3
We report the results of two fundamental transport measurements at a Landau level filling factor of 1/2. The well known ballistic electron transport phenomena of quenching of t…