170 citations · 293 across the 7 of their papers we have counts for
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cond-mat.mes-hall2003
A Hybrid Al(0.10)Ga(0.90)As/AlAs Bilayer Electron System
E. P. De Poortere, M. Shayegan
We have fabricated a device composed of two closely coupled two-dimensional electron systems, one of which resides within an AlAs quantum well (QW) at the X point of the Brillouin…
cond-mat.mes-hall2003
Critical Resistance of the Quantum Hall Ferromagnet in AlAs 2D Electrons
E. P. De Poortere, E. Tutuc, M. Shayegan
Magnetic transitions in AlAs two-dimensional electrons give rise to sharp resistance spikes within the quantum Hall effect. Such spikes are likely caused by carrier scattering at m…
cond-mat.mes-hall2003
Field-Effect Persistent Photoconductivity
E. P. De Poortere, Y. P. Shkolnikov, M. Shayegan
We report a persistent increase or decrease in the two-dimensional electron density of AlAs or GaAs quantum wells flanked by AlGaAs barriers, brought about by illuminating the samp…