QUANTUM HALL-EFFECT TRANSITIONS IN A BILAYER ELECTRON-SYSTEM IN TILTED MAGNETIC-FIELDS

The v = 2/3 fractional quantum Hall effect (FQHE) in a wide, single qu antum well subject to tilted magnetic fields makes a one-component to two-component transition induced by the in-plane component of the magn etic field. To analyze the experimental data we make a self-consistent , local-density-approximation calculation of the electronic structure of the wide quantum well in tilted magnetic fields. Our results are qu antitatively consistent with the earlier experimental work on the dens ity driven one-component to two-component FQHE transition in this syst em. (C) 1998 Elsevier Science B.V. All rights reserved.