4 papers
Coulomb pseudogap in elastic 2D-2D electron tunneling in a quantizing magnetic field
V. G. Popov, O. N. Makarovskii, V. Renard +2
The electron tunneling is experimentally studied between two-dimensional electron gases (2DEGs) formed in a single-doped-barrier heterostructure in the magnetic fields directed per…
Quantum corrections to the conductivity and Hall coefficient of a two-dimensional electron gas in a dirty AlGaAs/GaAs/AlGaAs quantum well: from the diffusive to the ballistic regime
V. T. Renard, I. V. Gornyi, O. A. Tkachenko +5
We report an experimental study of quantum conductivity corrections in a low mobility, high density two-dimensional electron gas in a AlGaAs/GaAs/AlGaAs quantum well in a wide temp…
Large positive magneto-resistance in high mobility 2D electron gas : interplay of short and long range disorder
Vincent T. F Renard, Ze Don Kvon, G M Gusev +1
We have observed a large positive quasi-classical magneto-resistance (MR) in a high mobility 2D electron gas in AlGaAs/GaAs heterostructure. The magneto-resistance is non-saturatin…
Conductivity of a 2DEG in Si/SiGe heterostructure near metal- insulator transition: role of the short and long range scattering potential
E. B. Olshanetsky, V. Renard, Z. D. Kvon +4
We report the observation of a metal-insulator transition (MIT) in a two- dimensional electron gas (2DEG) in a Si/SiGe heterostructure at zero magnetic field. On going through the…